JP2011000316A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine with a drain hose constitution reducing assembling man-hours, and restricting occurrence of quality deterioration due to abrasion.SOLUTION: The washing machine includes a water tank contained in a case, a washing tank rotatably installed in the water tank, a drain valve to drain water stored in the water tank downward, a drain hose 34 to introduce water drained from the drain valve through the circumferential wall of the case to the external, and an L-shaped elbow part 30 to connect the drain valve to the drain hose 34. The elbow part 30 is detachably connected to the drain hose 34.

Description

  The present invention relates to a washing machine capable of reducing the number of assembly steps and improving the durability of a drainage hose.

  Conventionally, in a washing machine comprising a drain valve for discharging water stored in a washing tub and a flexible drain hose connected to the drain valve, a pair of holding pieces that can be opened and closed hingedly A washing machine has been proposed in which a drainage hose is bent and held in an elbow shape by a holding member configured as described above (for example, see Patent Document 1).

JP-A-10-28799

  In the above washing machine, a fluororesin tape may be interposed between the drainage hose and the holding member in order to prevent the holding member from being worn by the portion holding the drainage hose due to vibration during the dehydration operation.

  However, when the fluororesin tape is interposed between the drainage hose and the holding member, there is a problem that the number of assembly steps increases, and the drainage hose is easily slidable with respect to the holding member by the fluororesin tape. There is a problem that the quality is difficult to stabilize.

  In addition, when the holding member is heated to a high temperature such as during a drying operation, the closing portion that closes the pair of holding pieces is loosened, and the drainage hose is easily rubbed against the holding member, or the closing by the closing portion is released and the holding member There is a possibility that it may come off from the drain hose, which is a problem.

  The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a washing machine having a drainage hose configuration that can reduce the number of assembling steps and is unlikely to cause quality deterioration due to wear or the like.

  A washing machine according to the present invention includes a water tub housed in an outer box, a washing tub rotatably mounted in the water tub, a drain valve that discharges water stored in the water tub downward, A drainage hose for leading the water drained from the drainage valve out of the peripheral wall of the outer box, and an L-shaped elbow part connecting the drainage valve and the drainage hose, the elbow part being the drainage The hose is detachably connected to the hose.

  In the washing machine of the present invention, the number of assembling steps can be reduced by the above configuration, and quality deterioration due to wear hardly occurs.

It is a longitudinal section of a washing machine concerning one embodiment of the present invention. It is sectional drawing which shows the principal part of the washing machine which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view of the washing machine which concerns on the 1st modification of this invention. It is sectional drawing which shows the principal part of the washing machine which concerns on the 1st modification of this invention. It is sectional drawing which shows the principal part of the washing machine which concerns on the 2nd modification of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the washing machine A according to the present embodiment is a vertical axis type washing machine, and includes a rectangular tubular outer box 1 and a top cover 2 mounted on the upper part of the outer box 1. The outer shell of the washing machine A is formed. A tank 4 is disposed inside the outer box 1.

  The tub 4 is composed of a double tub composed of a water tub 5 and a washing tub 6 disposed in the water tub 5. Both the water tub 5 and the washing tub 6 have a bottomed cylindrical shape, and are arranged in a vertical axis shape in which the respective central axes are directed in the vertical direction. The water tank 5 is configured to be able to store water, and is elastically supported by the outer case 1 via an elastic suspension mechanism 7. The washing tub 6 is rotatably accommodated in the water tub 5 and has a large number of through holes 8 in the peripheral wall portion.

  A pulsator 10 is rotatably disposed at the bottom of the washing tub 6, and a water passage 24 is formed around the rotation axis of the pulsator 10. A driving device 11 is disposed on the outer bottom of the water tank 5. The drive device 11 includes a motor that can rotate forward and backward and a clutch mechanism. By switching the clutch mechanism, the pulsator 10 rotates so that the pulsator 10 rotates during washing and rinsing, and the washing tub 6 rotates during dehydration. The washing tub 6 is selectively rotated.

  A drain port 25 is formed at the bottom of the water tank 5, and a drain valve 26 is connected to the drain port 25. Water in the washing tub 6 flowing in from the drain port 25 is discharged downward from the outlet portion 27 by opening a valve body (not shown).

  An elbow part 30 and a drain hose 34 are sequentially connected to the outlet part 27 of the drain valve 26.

  The elbow part 30 is, for example, an L-shaped injection molding made of a comb material, and a drainage connection part 40 for connecting the outlet part 27 of the drainage valve 26 to the upstream end 30a of the elbow part 30 is provided. Yes.

  As shown in FIG. 2, an adhesive 41 is applied to the inner peripheral surface of the drainage connection portion 40, the drainage connection portion 40 is fitted to the outlet portion 27 of the drainage valve 26, and tightened from above. A structure that is fastened by a ring 45 is employed. Further, the drainage connection portion 40 includes a pair of bulging portions 42 and 43 that function as an adhesive reservoir portion, and a straight portion 44 formed between the bulging portions 42 and 43, and The elbow part 30 is fixed to the outlet part 27 of the drain valve 26 by fastening the part with the fastening ring 45.

  The drain hose 34 includes a flexible machine inside drain hose 35 and a machine outside drain hose 36, and one end of the machine inside drain hose 35 is connected to the downstream end 30 b of the elbow part 30 via the machine hose joint 37. The other end of the machine-side drain hose 35 extends to the outside of the machine from a hose outlet 38 disposed at the lower end of the outer peripheral wall 1a. 36 is connected to the in-machine drain hose 35.

  In the washing machine A of the present embodiment described above, in the dehydration process performed after the washing operation is completed, the drain valve 26 is opened, so that the wash water in the washing tub 6 is drained, the drain valve 26, the elbow part 30, and the drain hose 34. It is discharged outside through the machine.

  According to the washing machine A of this embodiment mentioned above, there exist the following effects. That is, the elbow part 30 is inclined such that the upstream end part 30a is higher than the downstream end part 30b and the downstream end part 30b gradually becomes lower toward the outboard drain hose 36 side. Therefore, the washing water can be drained outside the machine without remaining water.

  Since the elbow part 30 is formed in an L shape and does not require a holding member for holding the L shape, the hose that drains the washing water discharged from the drain valve 26 to the outside of the machine is prevented from being worn. There is no need to dispose the tape to be assembled, and the number of assembly steps can be reduced.

  Moreover, since the elbow part 30 is detachably connected to the drain hose 34, the elbow part 30 can be shared by changing the in-machine drain hose 35 even if the outer box 1 has a different size. The cost can be reduced.

  Next, a first modification of the present embodiment will be described with reference to FIGS. Elements that are the same as or correspond to those in the above-described embodiment are given the same reference numerals, and redundant descriptions are omitted. The washing machine A of the present modification is different from the washing machine of the above embodiment in that the overflow hose 15 is connected to the elbow part 30.

  Specifically, as shown in FIG. 3, an overflow portion 16 including an overflow port portion 13, an overflow receiving portion 14, and an overflow hose 15 is provided at the upper portion of the water tank 5. The overflow port 13 is an opening formed in the water tank 5 at a position higher than the number of washings (high water level), and communicates the water tank 5 with the overflow receiving part 14 disposed on the outside thereof. One end of an overflow hose 15 is connected to the overflow receiver 14, and the water overflowing from the water tank 5 is received by the overflow receiver 14 and flows out from the overflow hose 15.

  In addition, as shown in FIG. 4, the elbow portion 30 is provided with a flood connection portion 39 that is branched and connected to the other end of the overflow hose 15.

  In the washing machine A of the first modification example, since the overflow connecting portion 39 for connecting the overflow hose 15 to the elbow portion 30 is provided, compared to the case of connecting the overflow hose 15 to the drain valve 26, The structure of the drain valve 26 can be simplified, and the manufacturing cost can be suppressed.

  Next, a second modification of the present embodiment will be described with reference to FIG. Elements that are the same as or correspond to those in the above-described embodiment are given the same reference numerals, and redundant descriptions are omitted. The washing machine A of the present modified example is different from the washing machine of the above embodiment in that the foreign substance storage unit 50 is connected to the elbow unit 30.

  Specifically, as shown in FIG. 5, a cylindrical portion 51 that extends downward from the drainage connection portion 40 is provided to be branched from the elbow portion 30. The cylindrical part 51 extends to a position lower than the downstream end part 30 b of the elbow part 30, and the lower end opening of the cylindrical part 51 is closed by a cap 52. The cap 52 is fixed by being engaged with an annular protrusion 53 protruding outward on the outer peripheral portion of the cylindrical portion 51.

  In the washing machine A according to the second modified example, since the elbow part 30 is disposed below the drainage connection part 40 and the foreign substance storage part 50 is provided, foreign substances such as coins are discharged into the drainage from the washing tub 6. Even if it is mixed, the foreign matter can be retained in the foreign matter storage section 50 and removed from the waste water.

DESCRIPTION OF SYMBOLS 1 ... Outer box 1a ... Peripheral wall 5 ... Water tank 6 ... Washing tank 25 ... Drain port 26 ... Drain valve 27 ... Outlet part 30 ... Elbow part 30a ... Upstream side end 30b ... Downstream side end 34 ... Drain hose 37 ... In-machine hose Joint 38 ... Connecting part 39 ... Overflow connection part 40 ... Drainage connection part 41 ... Adhesive 42 ... Swelling part 43 ... Swelling part 44 ... Straight part 45 ... Tightening ring

Claims (3)

  A water tank housed in an outer box, a washing tub rotatably mounted in the water tank, a drain valve for discharging the water stored in the water tank downward, and water drained from the drain valve A drain hose for leading out of the outer wall of the outer box to the outside of the machine, and an L-shaped elbow part connecting the drain valve and the drain hose, the elbow part being detachably connected to the drain hose A washing machine characterized by   The washing machine according to claim 1, wherein the elbow part is provided with a foreign substance storage part extending downward.   The overflow flow inlet for connecting the overflow path for discharging the water flowing into the overflow section provided in the upper part of the water tank to the outside of the machine is provided in the elbow section. Washing machine.

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