JPH0673585B2 - Frame assembly of two-tub type washing machine and washing machine using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-tub type washing machine and a frame assembly for washing and dewatering in separate tubes (tubs), and more particularly to an integrated base molded of synthetic resin. The present invention relates to a two-tub type washing machine including a frame, an integral tube frame having a washing tub and a dehydrating tub, and a frame assembly thereof.

[0002]

2. Description of the Related Art As is known in the prior art, a two-tub type washing machine is a concept contrary to a one-tub type automatic washing machine, and the washing tubs arranged in parallel with each other are separated from each other. It is equipped with an aquarium. Although such a two-tub type washing machine cannot automatically perform all the washing processes, it has been widely used so far because it is more reliable and cheaper to manufacture than a single-tub type washing machine. , Is still favored by consumers. Therefore, in the washing machine industry, great efforts have been made to further improve the productivity and performance characteristics of the two-tub washing machine, and as a result, various two-tub washing machines have been proposed. .

For example, in Japanese Utility Model Laid-Open No. 57-42777, as shown in FIG. 7, a base 10 and a main body which is placed on the base 10 and which has one open upper end. A washing machine comprising 12 and a tube frame 14 housed in the housing is disclosed. In this washing machine, the tube frame 14 is molded using synthetic resin, while the base 10 and the main body 12 are manufactured from steel plates. However, when the base 10 and the main body 12 are manufactured using a steel plate, many processes such as cutting, punching, welding, and painting are required, so that the productivity of the washing machine cannot be increased, and the steel plate is used. Parts that are manufactured in rust with long-term use, which can shorten the life of the washing machine. Furthermore, these iron parts will violently vibrate and generate loud noises during operation of the washing machine. In addition, in the above washing machine, since another overflow pipe 16 is provided in the washing tub to discharge the excess washing liquid to the outside, the overall structure is complicated.

As shown in FIG. 8, Japanese Examined Patent Publication No. 52-45148 discloses a base 20 and an upper portion of the base 20, the rear of which is open and a plurality of bases. A main body 22 having flanges 22a, 22b, 22c, and the main body 22
Disclosed is a frame assembly of a two-tub washing machine including a reinforcing cross bar 26 fixed to the rear of the main body 22 and a tube frame 28 housed inside the main body 22. Since the components of the frame assembly and the like are all manufactured from synthetic resin, it is possible to omit the special process required when processing the iron plate. However, since the number of parts forming the frame assembly is too large, a large number of molds are required, and a great deal of labor is required in the assembly process.
Also, a body 22 having a plurality of flanges 22a, 22b, 22c
Is extremely difficult to mold and requires the use of specially designed molds.

The present invention has been made in order to fundamentally solve the above-mentioned problems of the conventional frame assembly, and its purpose is to be inexpensive, easy to manufacture and excellent in structural stability. Another object of the present invention is to provide a frame assembly of a two-tub type washing machine.

Another object of the present invention is to provide a two-tub washing machine which has a compact structure, can be manufactured with high productivity, has a large vibration damping effect, and is excellent in durability.

[0007]

According to one embodiment of the present invention, a base frame and a tube frame are provided, the base frame having a bottom portion, a front wall, a rear wall and both side walls integrally formed with each other. The front wall,
Each of the rear wall and both side walls extends upward a first predetermined distance from the bottom and terminates in a first flange,
The tube frame includes a washing tub, a dehydration tub arranged in parallel with the washing tub, and a skirt portion having a shape surrounding at least a part of the washing machine and the dehydration tub,
The washing tub and the dewatering tub have a common upper edge and share one partition wall with each other, and the skirt portion extends downward from the upper edge by a second predetermined distance to form a second partition wall. And a first flange that is configured to abut the second flange to form a seam when the tube frame is assembled to the base frame. A frame assembly for a two-tub washing machine is provided.

According to another embodiment of the present invention, a frame assembly having a washing tub and a dewatering tub, a means for generating a vortex in the washing tub to wash an article to be washed, and the dewatering tub In the two-tub washing machine, which is arranged and includes a centrifuging means for separating water from the laundry to be washed and a control means for controlling the operation of the washing machine, the frame assembly is Consisting of a base frame and a tube frame, the base frame having a bottom portion integrally molded with each other, a front wall, a rear wall and both side walls,
Each of the front wall, the rear wall, and both side walls extends upward from the bottom by a first predetermined distance and terminates in a first flange; the tube frame is parallel to the washing tub and the washing tub. And a skirt portion having a shape surrounding at least a part of the washing tub and the dewatering tub, wherein the washing tub and the dewatering tub have a common upper edge and one partition wall. The skirt portion extends downward from the upper edge by a second predetermined distance and terminates at a second flange, and the first flange assembles the tube frame with the base frame. At this time, a two-tub type washing machine is provided, which is configured so as to come into contact with the second flange to form one seam.

[0009]

The frame assembly of the present invention comprises a base frame and a tube frame, and contributes to simplifying the overall structure of the two-tub type washing machine and reducing the manufacturing cost thereof. Further, since the tube frame is provided with the overflow passage, it is possible to realize a washing machine that does not require an overflow pipe separately. In addition, the base frame has a specially designed drainage hole, which effectively prevents external moisture from penetrating into the interior.

[0010]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

1 and 2 show a perspective view and a sectional view of an embodiment of a two-tub type washing machine of the present invention. The illustrated washing machine includes a base frame 30 and a tube frame 32.
32 cooperates with the base frame 30 to form one frame assembly or washing machine housing. A control casing 34 is attached to the upper end of the tube frame 32 by an appropriate fixing means, for example, a screw,
A washing machine control device such as a timer is housed in the casing 34 with the knobs 36 exposed to the outside. Further, the casing 34 includes a water tap 38. The washing tub lid 40 and the dehydration tub lid 42 are joined to the control casing 34 in a known manner to cover the inlets of the washing tub and the dehydration tub described later.

As is apparent from FIG. 3, the base frame
30 includes a bottom portion 44, a front wall 48 and both side walls 50, which are integrally molded with each other, and each of the front wall 46, the rear wall 48 and both side walls 50 is a first predetermined distance upward from the bottom portion 44. Only extends and terminates in the first flange 52. In the preferred embodiment, the first flange 52 has a groove 52a formed in its longitudinal direction.

It is preferable that the sidewalls 50 have recesses 54 extending in the vertical direction so that a user or the like can easily grasp the seam of the frame when the finished washing machine is carried. . The first flange 52 of the base frame 30 is discontinuous near the recess 54.

The rear wall 48 has an access opening 56 formed therethrough so that a user or the like can access various components in the base frame 30 through the opening 56. Such an access opening 56 can be sealed with a panel or left as it is. Further, the rear wall 48 is formed with a through hole 58 into which a drain hose (not shown) is fitted. The bottom portion 44 is provided with a reinforcing rib having a grid pattern and a large number of vent holes, which will be described later with reference to FIG.

By adopting the above structure, the base frame 30 of the present invention can be integrally molded with a single mold, and as a result, a manufacturing machine in a factory can be minimized to provide an inexpensive washing machine. Can be provided. Also, the base frame 30 has good corrosion resistance and excellent structural stability.
On the bottom surface of the base frame 30 having the above structure, for example,
Four legs 60 are attached for height adjustment. Of course, these legs 60 can be molded integrally with the base frame 30.

The tube frame 32, which is another component of the frame assembly, includes a washing tub 62, a dehydration tub 64 arranged in parallel with the washing tub 62, and the washing tub 62 and the dehydration tub 64. A skirt part that surrounds at least a part
It consists of 66 and. The washing tub 62 and the dehydration tub 64 have an upper edge 68 having a predetermined width, and are configured to share one partition wall 71 between them.

The skirt 66 extends downwardly from the upper edge 68 by a second predetermined distance and terminates in a second flange 70. For convenience in manufacturing and transporting the washing machine, the skirt 66 extends downwardly at the second predetermined distance such that the wall of the base frame 30 extends upwardly.
It is desirable to set the distance smaller than the predetermined distance.

The second flange 70 is a base frame.
A complementary relationship with the first flange 52 of the 30. When the tube frame 32 is assembled to the base frame 30, the first frame 52 is abutted to form one seam. Become. Unlike the first flange 52,
The second flange 70 has a central protrusion 70a,
The central protruding portion 70a is a groove 52a of the first flange 52.
Has a shape and dimensions capable of engaging with.

FIG. 4 is an enlarged view of the joint between the base frame 30 and the tube frame 32, that is, the joint of the frame assembly. Tube frame 32 to base frame 30
When the first flange 52 and the second flange are joined together,
It abuts 70 to form a seam of approximately semi-circular cross section. At this time, the protrusion 70a of the second flange 70 is
Is fitted into the groove 52a of the flange 52 of
Prevents 70 misalignment. First flange 52 and second flange
The screw 70 can be fixed to the screw 70. In order to improve the appearance of the frame assembly, the head of the screw 72 is preferably located on the bottom surface of the first flange 52.

The shapes and structures of the flanges 52 and 70 as described above are not particularly limited in the present invention, and any shape of flange can be used as long as it can provide a reliable seam.

3 and 5, it can be seen that the tube frame 32 has an overflow passage 74 near the upper end of the partition wall 71. The overflow passage 74 is
When washing, extra wash water and foam will be removed from the wash tub 62
Allows overflow to 64. The overflowed washing water or the like is discharged through a drain port formed at the bottom of the dehydration tank 64. Therefore, according to the present invention, the extra washing water and foam can be discharged to the outside through the dehydration tub 64 without installing another overflow pipe in the washing tub 62. In order to prevent the laundry from moving or flowing into the dehydration tank 64, the overflow passage
It is desirable to provide a filter plate 76 on 74. This filter board 76
Has a plurality of long holes 78 bored in its thickness direction, a pair of elastic hooks 80 extending rearward near the upper edge, and a protrusion 82 extending downward from the lower edge. In the partition wall 71,
The hook seat 84 is provided so that the filter plate 76 can be easily fixed.
And a rectangular groove 86 are formed. When the filtrate 76 is mounted on the overflow passage 74, the elastic hook 80
Is snap-fitted on the hook seat 84 of the partition wall 71, and the protrusion 82 engages with the rectangular groove 86.

FIG. 6 is a partially enlarged sectional view showing the bottom of the base frame. The bottom 44 of the base frame is shown in FIG.
As you can see, the grid pattern reinforcement ribs 88
have. The stiffening ribs 88 increase the strength of the bottom portion 44, thus preventing the bottom portion 44 from being distorted or damaged when a heavily loaded component, such as an electric motor, is mounted on the bottom portion 44. Further, the bottom portion 44 is provided with a plurality of drain holes 90 having a substantially uniform distribution.
Suppresses water from accumulating on the bottom portion 44 of the base frame 30 and causing a failure or corrosion of an electric motor or the like. The drain holes 90 are each defined by a tubular protrusion 92 extending downwardly from the bottom 44. The tubular protrusion 92 prevents the washing water or the like from dropping to the bottom of the laundry room and then splashing upward to enter the internal space of the frame assembly through the drain hole 90.

Further, referring to FIG. 2, the washing machine of the present invention is similar to the conventional washing machine in that the pulsator 94 provided at the bottom of the washing tub 62 and the pulsator 94 are rotationally driven to wash the washing tub. First electric motor 96 for generating a swirl in 62
And a transmission device 98 for transmitting the rotational force of the electric motor 96 to the pulsator 94.

In addition, the centrifuge drum 100 is installed in the dehydration tank 64.
The second electric motor is rotatably provided and is used during dehydration operation.
It is rotated at a high speed by 102. First and second drainage pipes 104 and 106 are connected to the washing tub 62 and the dehydration tub 64, and the wastewater generated during the washing operation or the dehydration operation is discharged to the outside through these drainage pipes.

[0025]

As described above, according to the present invention,
A washing machine with a simple structure, easy to manufacture, and excellent in vibration damping and durability can be realized.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a two-tub washing machine according to the present invention.

FIG. 2 is a vertical cross-sectional view of the two-tub type washing machine shown in FIG.

FIG. 3 is a partially cutaway exploded perspective view of a frame assembly that constitutes the washing machine of the present invention.

FIG. 4 is a partially enlarged cross-sectional view showing an example of a method of connecting the second flange of the tube frame to the first flange of the base frame.

FIG. 5 is a perspective view of an overflow passage formed at an upper end of a partition wall of a tube frame and a filter plate provided in the passage.

FIG. 6 is a partially enlarged sectional view showing the structure of the bottom portion of the base frame in detail.

FIG. 7 is a cross-sectional view showing a conventional two-tub type washing machine having a base and a body made of steel plates.

FIG. 8 is an exploded perspective view of a conventional washing machine frame molded of synthetic resin.

[Explanation of symbols]

 30 Base Frame 32 Tube Frame 34 Control Casing 40 Washer Lid 42 Dewatering Bath Lid 52 First Flange 62 Washing Bath 64 Dehydration Bath 66 Skirt 70 Second Flange

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Park Tae-guk 3-601 Meito Apartment 259-5, Cheongcheon-dong, North District, Incheon, Republic of Korea (601) (72) Inventor, Lee Jun-guk, 597, Zhu'an-dong, South District, Incheon, Republic of Korea

Claims (12)

[Claims] 1. A base frame and a tube frame, wherein the base frame includes a bottom portion, a front wall, a rear wall, and both side walls integrally formed with each other. Each extends upward a first predetermined distance from the bottom and terminates in a first flange, wherein the tube frame includes a washing tub, a dehydration tub arranged in parallel to the washing tub, and the washing tub. A skirt portion having a shape surrounding at least a part of the tub and the dewatering tub, wherein the washing tub and the dewatering tub have a common upper edge and share one partition wall with each other, The skirt extends downward from the upper edge by a second predetermined distance and terminates at a second flange, the first flange extending forward when the tube frame is assembled to the base frame. A frame assembly for a two-tub washing machine, wherein the frame assembly is configured to abut the second flange to form one seam. 2. The rear wall of the base frame has an access opening formed through the rear wall.
The frame assembly described. 3. The tube frame, during washing operation,
The frame assembly of claim 1, comprising an overflow passageway that allows excess wash water and foam to overflow from the wash tub to the dewatering tub. 4. The frame assembly according to claim 3, further comprising a filter plate removably provided in the overflow passage to prevent the laundry from moving. 5. The first flange of the base frame is provided with a groove formed in the longitudinal direction of the flange, and the second flange of the tube frame is complementary to the groove. The frame assembly according to claim 1, wherein the frame assembly includes a protrusion having a uniform shape. 6. The frame according to claim 1, wherein each of the side walls has a vertical recess formed on an outer surface thereof, and the first flange is discontinuous near the recess. Assembly. 7. The bottom portion of the base frame has reinforcing ribs in a grid pattern and a plurality of drain holes having a substantially uniform distribution, and the drain holes are defined by tubular protrusions extending downward from the bottom portion. The frame assembly according to claim 1, wherein 8. A frame assembly having a washing tub and a dewatering tub, a means for generating a vortex in the washing tub, and water disposed in the dewatering tub for washing articles to be washed. In a two-tub washing machine including a centrifuging means for separating the washing machine and a control means for controlling the operation of the washing machine, the frame assembly includes a base frame and a tube frame, and the base frame is A bottom wall, a front wall, a back wall, and both side walls integrally formed with each other, each of the front wall, the back wall, and both side walls extending upward from the bottom by a first predetermined distance; The tube frame includes a washing tub, a dehydration tub arranged in parallel to the washing tub, and a skirt portion surrounding at least a part of the washing tub and the dehydration tub. The washing tub and the dewatering tub have a common upper edge and share one partition wall with each other, and the skirt extends downward from the upper edge by a second predetermined distance. Terminating at a second flange, the first flange is configured to abut the second flange to form a seam when the tube frame is assembled to a base frame. A two-tank type washing machine characterized by that. 9. The two tub washing machine according to claim 8, wherein the tube frame is provided with an overflow passage for allowing excess washing water and foam to overflow from the washing tub to the dewatering tub. 10. The first flange of the base frame includes a groove formed in the longitudinal direction of the flange, and the second flange has a shape complementary to the groove. The two-tub type washing machine according to claim 8, further comprising a protruding portion having the same. 11. The two-tub washing machine according to claim 8, wherein the first predetermined distance is larger than the second predetermined distance. 12. The bottom has reinforcing ribs in a greed pattern and a plurality of drain holes with a substantially uniform distribution, the drain holes being defined by tubular protrusions extending downwardly from the bottom. The two-tub washing machine according to claim 8.