KR100798779B1 - Drum type washing machine - Google Patents

Abstract

A front loading washing machine is provided to improve solubility of a detergent in a water tank and to improve washing effect by guiding water into a lift using a guide member. A front loading washing machine comprises a water tank, a rotary drum, and a lift(40) having lifting member(41), a drain holes(42), and a guide member. The rotary drum is installed in the water tank, and has a plurality of through holes. The lifting member has receiving spaces(53,54) and stores water. The lifting member is projected from an inner surface of the rotary drum. The drain hole is formed at the lifting member, and drains water from the receiving space. The guide member has an inner guide unit(52) and an outer guide unit(51). The inner guide unit divides the receiving spaces to guide water to the receiving spaces. The outer guide unit is drilled the rotary drum from the inner guide unit and being extended to the outside of the rotary drum. The guide member divides receiving spaces into a rotational direction space and the opposite direction space.

Description

Drum Washing Machine {DRUM TYPE WASHING MACHINE}

1 is a cross-sectional view showing the configuration of a drum washing machine according to the present invention.

Figure 2 is an exploded perspective view showing the configuration of the lift of the drum washing machine according to the present invention.

3 is a bottom view of the drum washing machine lift according to the present invention.

4 is a cross-sectional view taken along the line IV-IV ′ of FIG. 1, illustrating a state in which the rotating drum rotates in the first direction.

FIG. 5 is a cross-sectional view taken along the line VV ′ of FIG. 1, illustrating a state in which the rotating drum rotates in the second direction.

Explanation of symbols on the main parts of the drawings

10: body, 11: tank,

14: door, 18: axis of rotation,

20: rotary drum, 30: drive motor,

40: lift, 41: lift member,

42: outlet, 51: first guide member,

52: second guide member, 53: first accommodation space,

54: second receiving space, 55,56: incision groove.

The present invention relates to a drum washing machine, and more particularly, to a drum washing machine to improve the washing effect by raising and dropping the washing water.

Korean Unexamined Patent Publication No. 10-2004-69135 (published Aug. 4, 2004) discloses a drum washing machine capable of pulling up and dropping wash water to improve washing power.

The drum washing machine disclosed in the above publication is equipped with a water tank filled with washing water, a rotating drum rotatably installed in the inside of the water tank, and a lift installed on an inner surface of the rotating drum to lift the laundry when the rotating drum is rotated. The lift is a lifting member having a drain hole for draining the washing water introduced into the rotating drum through the through-hole of the rotating drum and the washing water flowing into the lifting member, and then the lifting member is placed on the upper portion of the rotating drum. Equipped with opening and closing means installed inside the lifting member to spill when positioned.

The drum washing machine allows washing water to flow into the lift when the lift is located at the bottom of the rotating drum, and allows washing water introduced into the lift to fall into the rotating drum when the lift is located at the top. Improve.

However, such a drum washing machine may not be able to smoothly introduce the washing water into the lift because the washing water is introduced into the lift only while the lift is submerged in the washing water at the bottom of the tank. In addition, due to the opening and closing means provided in the lift could be limited in the amount of wash water flowing into the lift.

In addition, such a drum washing machine could not smoothly dissolve the detergent introduced into the tank due to the problem that the detergent sinks to the inner surface of the tank under the rotating drum.

The present invention is to solve such problems, it is an object of the present invention to provide a drum washing machine so that the washing effect can be improved by smoothly flowing wash water into the lift.

Another object of the present invention is to provide a drum washing machine that can improve the dissolution effect of the detergent introduced into the water tank.

Drum washing machine according to the present invention for achieving this object comprises a water tank, a rotating drum installed in the water tank and having a plurality of through holes, and a plurality of lifts installed on the rotating drum, the lift from the inner surface of the rotating drum An elevating member having a protruding and accommodating water, an outlet formed in said elevating member for discharging the water of said accommodating space, and from said accommodating space to said rotating drum for guiding water to said accommodating space; And an elongated guide member.

In addition, the guide member is characterized in that it comprises an inner guide portion for partitioning the inside of the receiving space and the outer guide portion extending through the rotating drum from the inner side guide portion to the outside of the rotating drum.

In addition, the guide member is characterized by partitioning the inside of the receiving space into a space on the side of the rotation direction and the opposite side.

In addition, the guide member is provided with the inner guide portion and the outer guide portion integrally, the outer guide portion is characterized in that it extends to the outside of the rotating drum through the cutting groove formed in the rotating drum.

In addition, the lifting member has a mountain-shaped cross section and has a long length in the direction intersecting the rotation direction of the rotating drum, characterized in that a plurality of outlets formed on the floor portion.

In addition, the guide member is characterized in that formed integrally with the lifting member.

In addition, the accommodation space of the lifting member includes a first accommodation space and a second accommodation space divided mutually in the longitudinal direction, the guide member is the first guide member and the first installed in the first and second accommodation space, respectively; And a guide member, wherein water is discharged toward the outlet of the first accommodation space when the rotating drum rotates in the first direction and toward the outlet of the second accommodation space when the rotating drum rotates in the second direction. The first guide member and the second guide member are disposed to be mutually offset so that water is discharged.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the drum washing machine according to the present invention includes a water tank 11 installed inside the main body 10 and a rotating drum 20 rotatably installed in the water tank 11. It is provided.

An inlet 13 is formed in the front portion of the main body 10 to open laundry to the inside of the rotating drum 20. The inlet 13 is provided with a door 14 that can be opened and closed. The upper part of the water tank 11 is provided with water supply valves 15a and 15b for water supply control and a detergent supply device 16 for supplying detergent to the inside of the water tank 11, and a water tank below the water tank 11. (11) In order to drain the water inside, a drainage device 17 including a drainage pipe 17a and a drainage pump 17b is provided.

The rotating drum 20 connects the front part 22 having the inlet 21, the rear part 23 having the rotating shaft 18 coupled to the center thereof, and connecting the front part 22 and the rear part 23 with a plurality of through holes. The cylindrical part 24 in which 25 was formed is included. In addition, the rotating drum 20 includes a plurality of lifts 40 installed on the inner surface of the cylindrical portion 24 so that the laundry can be raised and dropped when rotating.

The rotating shaft 18 supporting the rotating drum 20 extends rearward through the rear portion of the water tank 11, and a driving motor 30 for rotating the rotating shaft 18 is installed at the rear surface of the water tank 11. The driving motor 30 may be rotatably supported by the stator 31 fixed to the rear side of the water tank 11, the rotor 32 disposed in a rotatable state on the outside of the stator 31, and the rotor 32. And a support plate 18 whose outer periphery is coupled to the rotor 32 and whose center is coupled to the rotational shaft 18.

The plurality of lifts 40 installed on the rotating drum 20 not only pull up and drop laundry when the rotating drum 20 rotates, but also pull up and drop the washing water inside the water tank 11 to the top. do.

As shown in FIGS. 2 and 4, the lifts 40 include a lifting member 41 fixed to an inner surface of the rotating drum 20 and guide members 51 and 52 installed in the lifting member 41. ). The lifting member 41 has a mountain-shaped cross section protruding from the inner surface of the rotating drum 20, and has a long length in the direction intersecting with the rotation direction of the rotating drum 20.

In addition, the lifting member 41 is provided with receiving spaces (53, 54) therein so that the washing water flows through the through hole 25 of the rotating drum 20 when the rotating drum 20 is rotated, A plurality of outlets 42 are formed in the floor portion (normal portion) of the rising member 41 so that the washing water introduced into the accommodation spaces 53 and 54 can be discharged. Also, as shown in FIGS. 2 and 3, the accommodating spaces 53 and 54 in the rising member 41 are formed by the partition members 43 and 44, respectively. It is divided into the second accommodating space 54.

The guide members may include a first guide member 51 installed in the first accommodation space 53 in the center of the lifting member 41 and a second guide installed in the second accommodation space 54 on both sides of the lift member 41. Members 52. The guide members 51 and 52 have a flat plate shape that divides each accommodation space 53 and 54 into a space on the rotational side and a space on the opposite side thereof. These guide members 51 and 52 are integrally formed with the rising member 41 through injection molding of the resin material.

The first and second guide members 51 and 52 are installed in the first and second accommodating spaces 53 and 54 to define the inner guide parts 51a and 52a for partitioning the inside of the receiving space, and the inner guide parts 51a and 52a, the outer guides 51b and 52b extend through the rotating drum 20 and extend a predetermined length to the outside of the rotating drum 20, respectively. As shown in FIGS. 4 and 5, when the rotating drum 20 rotates, the rotating drum 20 and the water tank are guided by the outer guides 51b and 52b protruding to the outside of the rotating drum 20. Water between the (11) is to be introduced into each receiving space (53,54). The inner guide portions 51a and 52a and the outer guide portions 51b and 52b of the guide members 51 and 52 are formed of an integrated flat plate.

As illustrated in FIG. 3, the first and second guide members 51 and 52 provided in the first accommodation space 53 and the second accommodation space 54 are disposed to be offset from each other. This is because when the rotating drum 20 rotates in the first direction, water introduced into the first accommodation space 53 by the first guide member 51 is discharged through the outlet 42a of the first accommodation space 53. When the rotating drum 20 rotates in the second direction, the water introduced into the second accommodation space 54 by the second guide member 52 may open the outlet 42b of the second accommodation space 54. It is to be discharged through.

In addition, such a configuration is such that the outer guide parts 51b and 52b extending outwardly through the rotating drum 20 can be disposed at staggered positions as shown in FIG. 4. And the outer guides (51b, 52b) of this arrangement forms the vortex of the wash water on the outside of the rotating drum 20 when the rotating drum 20 rotates the detergent that has settled on the inner surface of the water tank (11) with the wash water. Stir together to increase the dissolution of the detergent.

As shown in FIG. 2, the rotating drum 20 has cutout grooves at staggered positions so that the outer guide portions 51b and 52b of the first and second guide members 51 and 52 can be coupled correspondingly. 55,56) are formed. As such, the configuration in which each of the incision grooves 55 and 56 are alternately arranged may increase the width of the connection part 57 of the rotation drum 20 between the incision groove 55 and the incision groove 56, and thus, the incision grooves 55. Despite the formation of 56, it is possible to maintain the rigidity of the rotating drum 20.

The lifting member 41 is provided with a plurality of hook hooks 58 for coupling the lifting member 41 to the inner surface of the rotating drum 20, and the plurality of hook hooks 58 are hooked to the rotating drum 20. The locking groove 59 is formed. The plurality of hook hooks 58 have a structure that is caught by the locking groove 59 by the elastic deformation. Therefore, when the lift 40 is mounted on the rotary drum 20, the lift 40 may be mounted only by inserting the plurality of hook hooks 58 into the plurality of hook grooves 59.

Next, the washing operation of the drum washing machine will be described.

When washing is put into the laundry inside the rotating drum 20 and the washing machine is operated while the detergent is supplied to the detergent supply device 16, the washing water is supplied to the inside of the water tank 11 together with the detergent. .

After the washing water is supplied, the rotating drum 20 is rotated by the operation of the driving motor 30 and washing is performed. The laundry inside the rotating drum 20 is lifted upward by the lifts 40 and then washed by the falling operation.

In addition, when the rotating drum 20 rotates, the lifts 40 raise the washing effect by pulling up and dropping the washing water. 4 and 5, when the lifts 40 are located at the bottom and are immersed in the wash water, the wash water flows into the lift 40, and when the lift 40 is located at the top, the lift ( The wash water introduced into the 40 is discharged through the outlets 42a and 42b and falls down. Therefore, the laundry inside the rotating drum 20 is hit by the falling washing water is improved washing effect.

As shown in FIG. 4, when the rotating drum 20 rotates in the first direction, the wash water flows into the first accommodation space 53 of the lift 40 by the first guide member 51. At this time, since the outer guide portion 51b of the first guide member 51 guides the water between the rotating drum 20 and the water tank 11 into the first accommodation space 53, the first guide member 51 is directed toward the first accommodation space 53. Washing water flows in.

This operation is continued for a while (while the lift is raised) by the effect of pushing the water between the water tank 11 and the rotating drum 20 in the rotational direction of the rotating drum 20. The amount of wash water flowing into the accommodation space 53 also increases. Therefore, the amount of washing water falling also increases, so that the washing effect is improved compared with the related art.

As shown in FIG. 5, when the rotating drum 20 rotates in the second direction, the washing water flows into the second accommodation space 54 of the lift 40 by the second guide member 52. At this time, the outer guide portion 52b of the second guide member 52 guides the water between the rotating drum 20 and the water tank 11 to the inside of the second accommodation space 54 so as to the second accommodation space 54. The wash water flows smoothly. As such, the present invention can increase the washing effect by raising and dropping the washing water when the rotating drum 20 rotates forward as well as reversely.

In addition, the outer guide parts 51b and 52b protruding to the outside of the rotating drum 20 during the operation of the first and second receiving spaces 53 and 54 receive water between the rotating drum 20 and the water tank 11. As well as guide), while stirring to raise the water between the rotating drum 20 and the water tank (11). Therefore, at this time, since the detergent submerged on the inner surface of the water tank 11 is stirred with the wash water, the detergent is smoothly dissolved.

As described above in detail, the drum washing machine according to the present invention smoothly flows into the lift because water between the rotating drum and the water tank is guided to the receiving space of the lift by the guide member of the lift when the rotating drum rotates. . Therefore, since the amount of washing water falling increases there is an advantage that the washing effect is improved.

In addition, the drum washing machine according to the present invention pulls up the detergent submerged on the inner surface of the water tank with the outer guide portion of the guide member protruding to the outside of the rotating drum and stirred with the wash water. Therefore, the dissolution effect of the detergent is improved.

Claims (7)

delete water tank; A rotating drum installed in the tank and having a plurality of through holes; A lifting member having an accommodation space protruding from the inner surface of the rotating drum and receiving water, an outlet formed in the lifting member to discharge water from the accommodation space, and an inside of the accommodation space for guiding water to the accommodation space. A lift having a guide member including an inner guide portion for partitioning and an outer guide portion penetrating through the rotary drum from the inner guide portion and extending out of the rotary drum; Drum washing machine comprising a. The method of claim 2, The guide member is a drum washing machine, characterized in that partitioning the inside of the receiving space into a space on the side of the rotation direction and the opposite side. The method of claim 2, The guide member is provided with the inner guide portion and the outer guide portion integrally, The outer guide portion of the drum washing machine, characterized in that extends through the cutting groove formed in the rotating drum to the outside of the rotating drum. The method of claim 4, wherein The rising member has a mountain-shaped cross section and has a long length in the direction intersecting the rotation direction of the rotating drum, the drum washing machine, characterized in that a plurality of outlets formed on the floor. The method according to claim 2 or 5, The guide member is a drum washing machine, characterized in that formed integrally with the lifting member. The method of claim 5, The accommodation space of the lifting member includes a first accommodation space and a second accommodation space divided mutually in the longitudinal direction, The guide member includes a first guide member and a second guide member respectively installed in the first and second accommodation spaces, and water is discharged toward the outlet of the first accommodation space when the rotating drum rotates in the first direction. And the first guide member and the second guide member are alternately disposed so that water is discharged toward the outlet of the second accommodation space when the rotating drum rotates in the second direction.

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