WO2020135178A1

WO2020135178A1 - Washing machine

Info

Publication number: WO2020135178A1
Application number: PCT/CN2019/126235
Authority: WO
Inventors: 前场克之; 冈崎纯也; 荒井英行
Original assignee: 青岛海尔洗衣机有限公司; Aqua株式会社; 海尔智家股份有限公司
Priority date: 2018-12-28
Filing date: 2019-12-18
Publication date: 2020-07-02
Also published as: CN113167009A; CN113167009B; JP2020103718A; JP7334894B2

Abstract

A washing machine, which may improve the maintainability of a drainage filter. The washing machine (1) comprises a drainage channel (5) that is disposed in a box body (2) and discharges water in a washing cylinder (13) to the outside of the box body (2), and a drainage filter (6) that may be attached to and detached from the drainage channel (5). The drainage filter (6) has a main body (32) that is disposed in the drainage channel (5) as the drainage filter (6) is attached to the drainage channel (5), and a comb tooth portion (33) movably supported by the main body (32). The comb tooth portion (33) enters the main body (32) as the drainage filter (6) is attached to the drainage channel (5), and exits from the main body (32) as the drainage filter (6) is detached from the drainage channel (5). In a state in which the drainage filter (6) is attached to the drainage channel (5), the drainage filter (6) captures, by means of the comb tooth portion (33), foreign objects contained in drainage flowing through the drainage channel (5) in the main body (32).

Description

washing machine

Technical field

The invention relates to a washing machine.

Background technique

The integrated washer-dryer described in Patent Document 1 described below includes a filter unit that catches foreign substances contained in the drain water. The filter unit has a basket portion formed with many filter holes. The drain water in the washer-dryer flows through the basket portion and passes through the filter hole. At this time, the foreign matter contained in the drain water is captured by the filter hole and accumulated in the basket portion.

In the filter unit described in Patent Document 1, long foreign objects such as thread and hair are easily entangled in the filter holes of the basket portion. During maintenance, it is time-consuming to remove the foreign objects entangled in the filter holes.

Existing technical literature

Patent Literature

Patent Document 1: Japanese Patent Laid-Open No. 2009-125537

Summary of the invention

Problems to be solved by the invention

The present invention has been completed under such a background, and an object of the present invention is to provide a washing machine capable of improving the maintainability of a drain filter.

Solutions for solving problems

The present invention is a washing machine, including: a box; a washing tub disposed in the box, containing laundry and storing water; a drainage channel, discharging the water in the washing tub to the outside of the box; and The drainage filter is detachable from the drainage channel, and has a main body, which is arranged in the drainage channel as the drainage filter is attached to the drainage channel; The main body is supported, enters the main body as the drainage filter is attached to the drainage path, and exits from the main body as the drainage filter is detached from the drainage path, filtering in the drainage In a state where the device is attached to the drainage channel, the comb-shaped portion captures the foreign matter contained in the drainage flowing through the drainage channel in the main body.

In addition, the present invention is characterized in that the washing machine further includes a guide portion that advances and retreats the comb-tooth portion as the drain filter is detached from the drain path.

In addition, the present invention is characterized in that the main body is formed with an insertion hole through which the comb-tooth portion is inserted and retracted, and the drain filter further includes a sealing portion to fill the insertion in the main body The gap between the peripheral portion of the through hole and the comb-tooth portion.

Effect of invention

According to the present invention, when the drain filter is attached to the drain path of the washing machine so that the main body of the drain filter is disposed in the drain path, the comb-teeth portion enters the main body. The comb-tooth portion that enters the main body traps the foreign matter contained in the drain flowing through the drain in the main body. As a result, the foreign matter trapped in the main body is entangled in the comb teeth, but when the drainage filter is detached from the drainage channel, the comb teeth will be withdrawn from the main body, thereby automatically removing the foreign matter from the comb teeth. Assemble into the main body. Therefore, in order to perform maintenance, the user can smoothly take out foreign objects from the main body of the drainage filter that is separated from the drainage channel, and thus the maintenance of the drainage filter can be improved.

In addition, according to the present invention, the comb portion can smoothly advance and retreat as the drain filter is attached to the drain path through the guide portion.

In addition, according to the present invention, in the drain filter, the comb tooth portion at the time of advancing and retreating is inserted into the insertion hole of the main body. Since the gap between the peripheral edge portion of the insertion hole in the main body and the comb-teeth portion is filled with the sealing portion, foreign matter can be prevented from entering the gap. Therefore, the trouble of removing foreign matter entering the gap is eliminated, and thus the maintenance of the drain filter is further improved.

BRIEF DESCRIPTION

FIG. 1 is a schematic longitudinal right side view of a washing machine according to an embodiment of the present invention.

2 is a perspective view of a filter unit arranged in a washing machine.

Fig. 3 is an exploded perspective view of a drain filter constituting a filter unit.

4 is a perspective view of a drain filter.

Fig. 5 is a plan view of a drain filter.

6 is a cross-sectional view taken along line AA of FIG. 5.

7 is a perspective view of a drain filter.

Fig. 8 is a cross-sectional view of a drain filter.

9 is a perspective view of a receiving portion constituting a filter unit.

Fig. 10 is a plan view of a receiving portion and a drain filter in the middle of attachment and detachment.

FIG. 11 is a BB cross-sectional view of FIG. 10.

FIG. 12 is a plan view of the receiving portion and the completed drain filter.

13 is a CC cross-sectional view of FIG. 12.

DESCRIPTION OF REFERENCE NUMERALS

1: Washing machine; 2: Cabinet; 5: Drainage channel; 6: Drain filter; 13: Washing tub; 32: Main body; 33: Comb tooth part; 36D: Insert hole; 37: Sealing part; 57C: Lower right Rib; 57D: upper right rib; 58C: lower left rib; 58D: upper left rib; F: foreign matter; L: laundry.

detailed description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Fig. 1 is a schematic longitudinal right side view of a washing machine 1 according to an embodiment of the present invention. The direction perpendicular to the paper surface of FIG. 1 is called the left-right direction X of the washing machine 1, the left-right direction in FIG. 1 is called the front-rear direction Y of the washing machine 1, and the up-down direction in FIG. 1 is called the up-down direction Z of the washing machine 1. . In the left-right direction X, the back side of the paper surface in FIG. 1 is referred to as the left side X1, and the front side of the paper surface in FIG. 1 is referred to as the right side X2. Among the front and rear directions Y, the left side in FIG. 1 is referred to as the front side Y1, and the right side in FIG. 1 is referred to as the rear side Y2. Among the vertical directions Z, the upper side is called an upper side Z1, and the lower side is called a lower side Z2.

The washing machine 1 of this embodiment is a so-called drum-type washer-dryer. The washing machine 1 includes a cabinet 2, an outer tub 3 disposed in the cabinet 2, a water supply path 4 and a drain 5 connected to the outer tub 3, and a drain that catches foreign objects in the water discharged from the outer tub 3 through the drain 5 The filter 6, the inner cylinder 7 which is arranged in the outer cylinder 3 and accommodates the laundry L, the motor 8 which rotates the inner cylinder 7, and the drying unit 9 which dries the laundry L in the inner cylinder 7.

The box 2 is formed in a box shape. The front surface 2A of the box 2 is, for example, a vertical surface. The front surface 2A is formed with an opening 2B that communicates the inside and outside of the case 2. A door 10 that opens/closes the opening 2B is provided on the front surface 2A.

The outer cylinder 3 is elastically supported by the case 2 via a damper (not shown). The outer cylinder 3 has a cylindrical circumferential wall 3A centered on the axis J extending in the horizontal direction H in the front-back direction Y, a disc-shaped back wall 3B that blocks the hollow portion of the circumferential wall 3A from the rear side Y2, and An annular front wall 3C connected to the front edge of the circumferential wall 3A. A through hole 3D penetrating the back wall 3B in the front-back direction Y along the axis J is formed in the center of the back wall 3B. The front wall 3C has an annular first portion 3E protruding from the front end edge of the circumferential wall 3A toward the axis J side, a cylindrical second portion 3F protruding from the inner peripheral edge of the first portion 3E to the front side Y1, and from The third portion 3G having an annular shape whose front end edge protrudes toward the axis J side. Inside the third portion 3G, a port 3H communicating with the hollow portion of the circumferential wall 3A from the front side Y1 is formed. The entrance 3H faces the opening 2B of the cabinet 2 from the rear side Y2 and communicates with each other.

The water supply path 4 has one end (not shown) connected to a faucet (not shown) and the other end 4A connected to the back wall 3B of the outer cylinder 3. During water supply, water from the faucet is supplied into the outer cylinder 3 from the water supply path 4. The outer cylinder 3 stores water such as tap water and detergent water in which detergent is dissolved in the tap water. In the middle of the water supply path 4, a water supply valve 11 that is opened/closed to start or stop water supply is provided.

The drain 5 is connected to the lower end of the outer tube 3, for example, the lower end of the first portion 3E of the front wall 3C. The water in the outer cylinder 3 is discharged from the drain channel 5 to the outside of the machine, that is, outside the tank 2. In the middle of the drain channel 5, a drain valve 12 that is opened/closed to start or stop drainage is provided.

The drain filter 6 is provided in the drain passage 5 closer to the upstream portion of the outer cylinder 3 than the drain valve 12. Since the front end of the drain filter 6 is exposed to the front surface 2A of the case 2, the user can grasp the front end of the drain filter 6 and detach the drain filter 6 from the case 2. The drain filter 6 will be described in detail later.

The inner cylinder 7 is smaller than the outer cylinder 3 by one turn. The outer tub 3 and the inner tub 7 constitute a washing tub 13. The inner cylinder 7 has a cylindrical circumferential wall 7A disposed coaxially with the circumferential wall 3A of the outer cylinder 3, a disc-shaped back wall 7B that blocks the hollow portion of the circumferential wall 7A from the rear side Y2, and a The ring-shaped annular wall 7C whose front end edge protrudes toward the axis J side. A plurality of through holes 7D are formed in the inner tube 7 at least on the circumferential wall 7A, and water in the outer tube 3 flows between the outer tube 3 and the inner tube 7 through the through holes 7D. Thereby, the water level in the outer cylinder 3 and the water level in the inner cylinder 7 match. In the center of the back wall 7B of the inner cylinder 7, a support shaft 14 extending toward the rear side Y2 along the axis J is provided. The rear end portion of the support shaft 14 passes through the through hole 3D of the back wall 3B of the outer cylinder 3 and is arranged on the rear side Y2 of the back wall 3B.

An entrance 7E communicating with the hollow portion of the circumferential wall 7A from the front side Y1 is formed inside the annular wall 7C. The entrance 7E is opposed to and communicates with the entrance 3H of the outer cylinder 3 and the opening 2B of the case 2 from the rear side Y2. The entrance 3H and the entrance 7E are opened/closed together through the door 10 together with the opening 2B. The user of the washing machine 1 causes the laundry L to enter and exit the inner tub 7 via the open opening 2B, the entrance 3H, and the entrance 7E.

The motor 8 is arranged on the rear side Y2 of the back wall 3B of the outer cylinder 3 in the case 2. The motor 8 is connected to the support shaft 14 provided in the inner tube 7. The driving force generated by the motor 8 is transmitted to the support shaft 14, and the inner cylinder 7 rotates about the axis J with the support shaft 14. It should be noted that a clutch mechanism (not shown) that transmits or disconnects the driving force of the motor 8 to the support shaft 14 may be provided between the motor 8 and the support shaft 14.

The drying section 9 includes a circulation path 20, an air blowing section 21, and a heating section 22. The circulation path 20 is a flow path arranged in the case 2 on the upper side Z1 of the outer tube 3, for example. An outlet 20A is formed at one end of the circulation path 20, and a return port 20B is formed at the other end of the circulation path 20. The extraction port 20A is connected to a portion of the back wall 3B of the outer cylinder 3 that is higher than the upper limit water level in the outer cylinder 3 and communicates with the inside of the outer cylinder 3 from the rear side Y2. The return port 20B is connected to the upper end of the second portion 3F of the front wall 3C of the outer cylinder 3 and communicates with the inside of the outer cylinder 3 from the upper side Z1.

The blower 21 is a so-called blower, and includes a rotating blade 23 arranged in the circulation path 20 and a motor (not shown) that rotates the rotating blade 23. When the rotating blade 23 rotates, the air in the washing tub 13, that is, the air in the outer tub 3 and the inner tub 7 is drawn out from the outlet 20A into the circulation path 20 as indicated by the thick dotted arrows, and then from the return port 20B Return to the washing tub 13. Thereby, the air in the washing tub 13 circulates so as to flow through the washing tub 13 and the circulation path 20 in this order.

The heating unit 22 is a heat exchanger in a heat pump, a general heater, or the like, and at least a part of the heating unit 22 is provided in the circulation path 20. The portion of the heating portion 22 provided in the circulation path 20 has a plurality of fin-shaped heat dissipating portions 22A, for example. When the heating unit 22 is operated, the heat dissipation unit 22A becomes high temperature, so the air flowing in the circulation path 20 is heated as it passes around the heat dissipation unit 22A and becomes hot air.

The washing machine 1 includes a control section 24 configured as a microcomputer. The control unit 24 performs the washing operation by controlling the operations of the motor 8, the water supply valve 11, the drain valve 12, the air blowing unit 21, and the heating unit 22. The washing operation includes washing process, rinsing process, dehydration process and drying process.

Before the start of the washing process, detergent is poured into the inner cylinder 7. During the cleaning process, the control unit 24 opens the water supply valve 11 for a predetermined time to supply water to the outer cylinder 3 and the inner cylinder 7 with the drain valve 12 closed, and then the inner cylinder 7 is rotated by the motor 8. Thus, the laundry L in the inner tub 7 is dropped. During the fall washing, the washing L repeats the "beating" that naturally falls to the water surface after being lifted to a certain degree. The impact of the beating and the detergent component contained in the water stored in the inner cylinder 7 removes dirt from the laundry L. After a predetermined time has elapsed since the start of the beating, when the control section 24 opens the drain valve 12 to drain the water, the washing process ends.

During the rinsing process, the control unit 24 opens the water supply valve 11 for a predetermined period of time while the drain valve 12 is closed to supply water to the outer cylinder 3 and the inner cylinder 7, and then the inner cylinder 7 is rotated by the motor 8. In this way, since the aforementioned beating is repeated, the laundry L is rinsed by the tap water in the inner tub 7. After a predetermined time has elapsed since the start of the beating, when the control section 24 performs drainage, the rinsing process ends. The rinsing process can be repeated many times. During the dehydration process, the control unit 24 spins the inner cylinder 7 in a dehydrated state with the drain valve 12 opened. The centrifugal force generated by the spin-drying of the inner tub 7 dehydrates the laundry L in the inner tub 7. The water oozed out from the laundry L by dehydration is discharged from the drain 5 to the outside of the machine. Not only after the rinsing process, but also after the washing process, a dehydration process can be carried out.

During the drying process, the control unit 24 generates hot air through the air blowing unit 21 and the heating unit 22 and circulates it between the inner tub 7 and the circulation path 20 to supply the laundry L in the inner tub 7. Thus, the laundry L is dried. It should be noted that the washing machine 1 may be a washing machine in which the drying unit 9 is omitted. In this case, the drying process is omitted during the washing operation.

Next, the drain filter 6 will be described in detail. The washing machine 1 includes a filter unit 30 having a drain filter 6. FIG. 2 is a perspective view of the filter unit 30. The filter unit 30 has a receiving portion 31 in addition to the drain filter 6. The receiving portion 31 constitutes a part of the drain channel 5 and is a member for attaching and detaching the drain filter 6. In the following description, the respective directions of the drain filter 6 and the receiving portion 31 are defined using the above-described left-right direction X, front-rear direction Y, and up-down direction Z. In addition, below, unless otherwise indicated, each member which comprises the filter unit 30 is made of resin.

FIG. 3 is an exploded perspective view of the drain filter 6. The drain filter 6 has a main body 32 for accommodating the trapped foreign matter, and a comb-tooth portion 33 that actually catches the foreign matter from the drain water flowing through the drain path 5. The main body 32 has a box-shaped accommodating portion 34 that is long in the front-rear direction Y, an operation portion 35 connected to the front end portion of the accommodating portion 34, and an attachment 36 and a sealing portion 37 that are accommodated in the accommodating portion 34.

The housing portion 34 has a rectangular plate-shaped bottom wall 38 that is long in the front-rear direction Y, a rectangular plate-shaped right wall 39 that rises from the right end of the bottom wall 38, and a rectangular plate-shaped left wall that rises from the left end of the bottom wall 38 40. The housing portion 34 further includes a rectangular plate-shaped rear wall 41 that rises from the rear end of the bottom wall 38 and is erected between the rear ends of the right wall 39 and the left wall 40; and a disc-shaped front wall 42 that is opposite to the bottom The front ends of the wall 38, the right wall 39, and the left wall 40 are connected. A storage chamber 34A is formed in the front-back direction Y surrounded by the bottom wall 38, the right wall 39, the left wall 40, the rear wall 41, and the front wall 42 and opened to the upper side Z1.

At the rear end portion of the bottom wall 38, a substantially rectangular outlet 38A is formed that penetrates the bottom wall 38 in the vertical direction Z and communicates with the storage chamber 34A (see also FIG. 5 described later). In the area of the bottom wall 38 that is closer to the front side Y1 than the outlet 38A, a plurality of circular insertion holes 38B that penetrate the bottom wall 38 in the vertical direction Z are formed (see FIG. 6 described later). These insertion holes 38B are regularly distributed in a matrix or staggered arrangement pattern.

A rib-shaped right lateral guide 39A that protrudes to the right side X2 and extends in the front-rear direction Y is provided over the entire area of the upper end of the right wall 39. The right lateral guide portion 39A is formed such that its rear end portion protrudes one step toward the right side X2. At a rear end portion of the right wall 39, an approximately rectangular outlet 39B is formed that penetrates the right wall 39 in the left-right direction X and communicates with the storage chamber 34A. In a region of the right surface of the right wall 39 that is closer to the front side Y1 than the outlet 39B, a pair of front and rear right longitudinal guide portions 39C and a pair of front and rear right engaging portions 39D are provided.

Each right longitudinal guide 39C is a rib extending from the lower end of the right wall 39 in the up-down direction Z to the front of the right lateral guide 39A. Each front end portion of the right surface of the right wall 39 and a portion of the right surface of the right wall 39 adjacent to the outlet 39B are provided with a right longitudinal guide 39C. The right engagement portion 39D is formed in a claw shape that protrudes toward the right side X2 at the lower end portion of the right surface of the right wall 39. The right engagement portion 39D of the front side Y1 is arranged adjacent to the lower end portion of the right longitudinal guide 39C of the front side Y1 from the rear side Y2, and the right engagement portion 39D of the rear side Y2 is arranged from the front side Y1 and the rear side Y2 The lower end of the right longitudinal guide 39C is adjacent.

The accommodating portion 34 is arranged to be bilaterally symmetrical. Therefore, the left lateral guide 40A having the same shape as the right lateral guide 39A is provided in the entire area of the upper end of the left wall 40 so as to be bilaterally symmetrical to the right lateral guide 39A. An outlet 40B having the same shape as the outlet 39B of the right wall 39 is formed at the rear end of the left wall 40. The outlet 40B communicates with the storage chamber 34A. On the left surface of the left wall 40, a pair of front and rear left longitudinal guides 40C having the same shape as the right longitudinal guide 39C are provided so as to be bilaterally symmetrical to the right longitudinal guide 39C. On the left surface of the left wall 40, a pair of front and rear left engaging portions 40D having the same shape as the right engaging portion 39D are provided so as to be bilaterally symmetrical to the right engaging portion 39D. However, the left and right structures of the engaging portion and the like in the storage portion 34 need not necessarily be bilaterally symmetrical.

A substantially rectangular outlet 41A penetrating the rear wall 41 in the front-rear direction Y is formed in the lower region of the rear wall 41. The outlet 41A communicates with the storage chamber 34A. Viewed from the front-rear direction Y, the rear wall 41 is smaller than the front wall 42 and is arranged inside the wheel wall of the front wall 42. An annular rib 42A extending in the circumferential direction is provided on the outer peripheral surface of the front wall 42. A ring-shaped seal 43 made of, for example, an O-ring made of rubber is fitted into the outer peripheral surface of the front wall 42 on the rear side Y2 than the rib 42A.

The operation portion 35 has a disc portion 35A arranged coaxially with the front wall 42 and a handle 35B protruding from the front surface of the disc portion 35A to the front side Y1. A lock groove 35C extending in the circumferential direction is formed on the outer peripheral surface of the disc portion 35A. There may be a plurality of lock grooves 35C, and in this case, the lock grooves 35C are arranged along the circumferential direction of the disc portion 35A. The operation portion 35 can relatively rotate relative to the housing portion 34 about a rotation axis (not shown) extending in the front-rear direction Y through the center of the disk portion 35A.

The attachment 36 has a rectangular plate-shaped bottom plate 36A long in the front-rear direction Y, a rectangular plate-shaped right plate 36B rising from the right end of the bottom plate 36A, and a rectangular plate-shaped left plate 36C rising from the left end of the bottom plate 36A. The direction Y is viewed as a U-shape. The entire attachment 36 is stored in the storage room 34A of the storage unit 34. In this state, the bottom plate 36A overlaps with the portion of the bottom wall 38 of the housing portion 34 closer to the front side Y1 than the outlet 38A from the upper side Z1. The bottom plate 36A is formed with circular insertion holes 36D penetrating the bottom plate 36A in the vertical direction Z in the same number as the insertion holes 38B of the bottom wall 38. The insertion hole 36D is one circle larger than the insertion hole 38B. The insertion holes 36D are regularly distributed in the same arrangement pattern as the insertion holes 38B. Therefore, when viewed from the vertical direction Z, the insertion holes 36D and the insertion holes 38B overlap one by one (refer to FIG. 6 ).

The sealing portion 37 has a rectangular plate-shaped base 37A long in the front-rear direction Y and a cylindrical portion 37B protruding from the upper surface of the base 37A to the upper side Z1. The cylindrical portions 37B are provided in the same number as the insertion holes 36D and the insertion holes 38B, respectively, and are regularly arranged in the same arrangement pattern as these insertion holes. The outer diameter of the cylindrical portion 37B is the same as the inner diameter of the insertion hole 36D. A circular through-hole 37C that penetrates both the cylindrical portion 37B and the base 37A in the vertical direction Z is formed inside each cylindrical portion 37B. The inner diameter of the through hole 37C is the same as the inner diameter of the insertion hole 38B of the bottom wall 38 of the housing portion 34.

In the sealing portion 37, the base 37A is disposed between the bottom wall 38 of the housing portion 34 and the bottom plate 36A of the attachment 36, and each cylindrical portion 37B is closely fitted into the insertion hole 36D of the bottom plate 36A one by one from the lower side Z2. When viewed from the vertical direction Z, the insertion hole 36D, the insertion hole 38B, and the through-hole 37C of the cylindrical portion 37B overlap one by one (refer to FIG. 6 ).

The comb-tooth portion 33 has a rectangular plate-shaped bottom plate 33A that is long in the front-rear direction Y, and a right engagement portion 33B that protrudes from the bottom plate 33A to the upper side Z1 and a right engagement portion 33B that are provided at the right end and the rear end of the bottom plate 33A, and The left end of the bottom plate 33A is provided with a left engagement portion 33C each protruding from the bottom plate 33A to the upper side Z1. The comb-tooth portion 33 is arranged to be bilaterally symmetrical. In the bottom plate 33A, the left end portion and the right end portion are inclined toward the upper side Z1, and the center portion between the left end portion and the right end portion is flat. On the upper surface of the central portion of the bottom plate 33A, a plurality of elongated cylindrical pin needles 33D extending upward Z1 are formed. The tooth pins 33D are provided in the same number as the through holes 37C of the sealing portion 37, and are regularly arranged in the same arrangement pattern as the through holes 37C. These tooth pins 33D constitute the comb teeth of the comb tooth portion 33. The outer diameter of the tooth pin 33D is the same as the inner diameter of the through hole 37C.

In each right engaging portion 33B, a right guide hole 33BA long in the vertical direction Z is formed so as to penetrate the right engaging portion 33B in the left-right direction X. In each left engaging portion 33C, a left guide hole 33CA that is long in the vertical direction Z is formed so as to penetrate the left engaging portion 33C in the left-right direction X.

The comb-tooth portion 33 has a right side plate 33E extending from the right end of the bottom plate 33A from the pair of front and rear right engagement portions 33B to the upper side Z1. The right side plate 33E is formed in a right-angled triangular shape having an upper end extending obliquely toward the rear upper side. A rib-shaped right lateral guide 33EA protruding toward the right side X2 is provided over the entire area of the upper end of the right side plate 33E.

The comb-tooth portion 33 has a left side plate 33F extending from the left end of the bottom plate 33A from the pair of front and rear left engagement portions 33C to the upper side Z1. The left side plate 33F is formed in the same right triangle shape as the right side plate 33E. A rib-shaped left lateral guide 33FA protruding to the left X1 is provided over the entire area of the upper end of the left side plate 33F.

The comb-tooth portion 33 is arranged to cover the housing portion 34 of the main body 32 from the lower side Z2. In the comb-tooth portion 33, the bottom plate 33A faces the area on the front side Y1 of the bottom wall 38 of the housing portion 34 from the lower side Z2, and the right engaging portion 33B and the right side plate 33E from the right side X2 and The right wall 39 of the housing portion 34 faces each other, and each of the left engagement portion 33C and the left side plate 33F faces the left wall 40 of the housing portion 34 from the left side X1. The right engagement portions 39D provided on the right surface of the right wall 39 are fitted into the right guide holes 33BA of the right engagement portions 33B one by one from the left side X1. The left engagement portions 40D provided on the left surface of the left wall 40 are fitted into the left guide holes 33CA of the left engagement portions 33C one by one from the right side X2. As a result, the comb-tooth portion 33 is connected to the main body 32 and supported by the main body 32.

Within the range in which the right engagement portion 39D can move in the vertical direction Z in the right guide hole 33BA, that is, in the range in which the left engagement portion 40D can move in the vertical direction Z in the left guide hole 33CA, the comb tooth portion 33 Can slide in the vertical direction Z. As a result, the comb-tooth portion 33 can relatively move relative to the main body 32. The right longitudinal guide portion 39C adjacent to the right engagement portion 39D of the front side Y1 and the right longitudinal guide portion 39C adjacent to the right engagement portion 39D of the rear side Y2 from the rear side Y1 33 moves to guide. The left longitudinal guide portion 40C adjacent to the left engagement portion 40D (not shown) of the front side Y1 from the front side Y1 and the left longitudinal guide portion adjacent to the left engagement portion 40D of the rear side Y2 from the rear side Y2 40C guides the movement of the comb-tooth portion 33.

FIG. 4 is a perspective view of the drain filter 6. FIG. 5 is a plan view of the drain filter 6. 6 is a cross-sectional view taken along line AA of FIG. 5. The comb teeth 33 shown in FIGS. 4, 5 and 6 are located at the lower limit exit position, respectively.

In the comb-tooth portion 33 at the exit position, the bottom plate 33A is detached from the bottom wall 38 of the housing portion 34 of the main body 32 to the lower side Z2, and the right engaging portion 39D of the housing portion 34 is located in the right guide hole 33BA of each right engaging portion 33B At the upper end, the left engaging portion 40D of the housing portion 34 is located at the upper end of the left guide hole 33CA of each left engaging portion 33C. Moreover, most of each of the right lateral guide 33EA and the left lateral guide 33FA is located below the bottom wall 38. The upper end of each tooth needle 33D protruding from the bottom plate 33A of the comb tooth portion 33 to the upper side Z1 is inserted from the lower side Z2 into the insertion hole 38B at the corresponding position in the bottom wall 38 and at the corresponding position in the bottom plate 36A of the attachment 36 Insertion hole 36D and the through hole 37C of the cylindrical portion 37B at the corresponding position in the sealing portion 37. However, the upper end portion of each tooth needle 33D does not protrude from the through hole 37C to the upper side Z1, but is in a state of being withdrawn from the main body 32, that is, the storage chamber 34A of the storage portion 34 to the lower side Z2.

The drain filter 6 further includes one urging member 44 (see FIG. 4) arranged one by one in the right guide hole 33BA of each right engagement portion 33B and the left guide hole 33CA of each left engagement portion 33C. The urging member 44 is a spring that can expand and contract in the longitudinal direction of each of the right guide hole 33BA and the left guide hole 33CA. The urging member 44 in the right guide hole 33BA is in a compressed state on the lower side Z2 of the right engaging portion 39D, and always urges the right engaging portion 33B toward the lower side Z2. The urging member 44 in the left guide hole 33CA is in a compressed state on the lower side Z2 of the left engaging portion 40D, and always urges the left engaging portion 33C to the lower side Z2 (not shown). Thus, the comb-tooth portion 33 is always biased toward the exit position by the biasing member 44. It should be noted that in each figure other than FIG. 4, the illustration of the urging member 44 is omitted.

When the comb tooth portion 33 is raised from the exit position against the urging force of the force applying member 44, the comb tooth portion 33 is placed in the upper limit entry position. That is, the comb-tooth portion 33 can advance and retreat between the entry position and the exit position. FIG. 7 is a perspective view of the drain filter 6 when the comb-tooth portion 33 is at the entry position. FIG. 8 is a cross-sectional view of the drain filter 6 when the comb-tooth portion 33 is at the entry position along the same cutting position as FIG. 6.

In the comb-teeth portion 33 at the entry position, the bottom plate 33A contacts the bottom wall 38 of the housing portion 34 of the main body 32 from the lower side Z2, and the right engaging portion 39D of the housing portion 34 is located in the right guide hole 33BA of each right engaging portion 33B At the lower end of the housing, the left engaging portion 40D of the housing portion 34 is located at the lower end of the left guide hole 33CA of each left engaging portion 33C. In addition, the entire right side plate 33E is located higher than the bottom wall 38 and faces the right wall 39 of the housing portion 34 from the right side X2. In addition, the entire left side plate 33F is located higher than the bottom wall 38 and faces the left wall 40 of the housing portion 34 from the left side X1. Each tooth needle 33D protruding from the bottom plate 33A of the comb-tooth portion 33 to the upper side Z1 includes most of its upper end passing through the insertion hole 38B at the corresponding position in the bottom wall 38 and the circle at the corresponding position in the sealing portion 37 The through hole 37C of the cylindrical portion 37B protrudes from the through hole 37C to the upper side Z1 and enters the storage chamber 34A of the storage portion 34.

FIG. 9 is a perspective view of the receiving portion 31. The receiving portion 31 has a box-shaped housing 51 formed in a long shape in the front-rear direction Y, a cylindrical portion 52 connected to the front end of the housing 51, and downward from the rear end portion and the cylindrical portion 52 of the housing 51, respectively The bracket 53 protruding from Z2 and the vertical plate 54 connected to the front end of the cylindrical portion 52.

The housing 51 is arranged obliquely with respect to the horizontal direction H so as to descend as approaching the rear side Y2. Therefore, the housing 51 has a bottom wall 55 inclined so as to descend toward the rear side Y2, and a rectangular plate-shaped top wall disposed on the upper side Z1 of the bottom wall 55 and inclined rearward and lower like the bottom wall 55. 56. The housing 51 has a rectangular plate-shaped right wall 57 that is erected between the right ends of the bottom wall 55 and the top wall 56, a rectangular plate-shaped left wall 58 that is erected between the bottom ends of the bottom wall 55 and the top wall 56, and the bottom The rear wall 59 to which the rear ends of the walls 55, the top wall 56, the right wall 57 and the left wall 58 are connected. The internal space 51A of the housing 51 is blocked by the bottom wall 55 and the top wall 56 from both sides in the vertical direction Z, is blocked by the right wall 57 and the left wall 58 from both sides in the left and right direction X, and is blocked by the rear wall 59 from the rear side Y2 is blocked. The internal space 51A is inclined so as to descend as it approaches the rear side Y2.

The bottom wall 55 is bent into a U shape when viewed from the front-back direction Y. A cylindrical rib 56A protruding upward Z1 is provided in the middle of the top wall 56. The portion surrounded by the rib 56A is the inlet 56B, and communicates with the internal space 51A of the housing 51 from the upper side Z1 through the top wall 56.

The left surface of the right wall 57 facing the inner space 51A of the housing 51 is formed with an upper right guide groove 57A inclined at the upper end portion of the left surface and linearly extending along the top wall 56 and a lower side Z2 direction of the upper right guide groove 57A The lower right guide groove 57B extending from the rear side Y2. The right upper guide groove 57A extends from the front end portion of the right wall 57 to the front of the rear wall 59, and the front end of the right upper guide groove 57A opens to the front side Y1.

The left surface of the right wall 57 is provided with a right lower rib 57C that partitions the right lower guide groove 57B from the lower side Z2 and a right upper rib 57D that partitions the lower right guide groove 57B from the upper side Z1. The lower right rib 57C extends substantially horizontally, and approaches the upper right guide groove 57A as it approaches the rear side Y2. The right upper rib 57D has a front portion 57DA close to the right lower rib 57C while gradually descending toward the rear side Y2 and a rear portion 57DB extending parallel to the right lower rib 57C from the rear end of the front portion 57DA to the rear side Y2. Therefore, the width of the vertical direction Z of the lower right guide groove 57B in the area between the front portion 57DA and the lower right rib 57C narrows as it approaches the rear side Y2, and the area between the rear portion 57DB and the lower right rib 57C The width of the groove is fixed. The rear end of the rear portion 57DB is located on the front side Y1 of the rear end of the lower right rib 57C. The front end of the lower right guide groove 57B is opened to the front side Y1.

A right surface of the left wall 58 facing the inner space 51A of the housing 51 is formed with an upper left guide groove 58A extending linearly while the upper end portion of the right surface is inclined along the top wall 56 and a lower side of the upper left guide groove 58A Z2 is a left lower guide groove 58B extending toward the rear side Y2 (refer to FIG. 11 described later). The upper left guide groove 58A is arranged to be bilaterally symmetrical with the upper right guide groove 57A. The upper left guide groove 58A extends from the front end portion of the left wall 58 to the front of the rear wall 59, and the front end of the upper left guide groove 58A opens to the front side Y1.

The lower left guide groove 58B is arranged to be bilaterally symmetrical to the lower right guide groove 57B. The right surface of the left wall 58 is provided with a left lower rib 58C that partitions the lower left guide groove 58B from the lower side Z2 and an upper left rib 58D that partitions the lower left guide groove 58B from the upper side Z1 (see FIG. 11 ). The lower left rib 58C extends substantially horizontally and approaches the upper left guide groove 58A as it approaches the rear side Y2. The left upper rib 58D has a front portion 58DA close to the left lower rib 58C while gradually descending toward the rear side Y2 and a rear portion 58DB extending parallel to the left lower rib 58C from the rear end of the front portion 58DA to the rear side Y2. Therefore, the groove width in the up-down direction Z of the lower left guide groove 58B becomes narrower in the area between the front portion 58DA and the lower left rib 58C as it approaches the rear side Y2, and the groove width in the area between the rear portion 58DB and the lower left rib 58C is fixed . The rear end of the rear portion 58DB is located on the front side Y1 of the rear end of the left lower rib 58C. The front end of the lower left guide groove 58B is opened to the front side Y1.

A cylindrical rib 58E protruding to the left X1 is provided at the rear end of the left wall 58. The portion surrounded by the rib 58E is the outlet 58F, penetrates the left wall 58 and communicates with the rear end portion of the internal space 51A of the housing 51 from the left side X1 (see FIG. 10 described later). The inlet 56B of the top wall 56 and the outlet 58F of the left wall 58 are connected in the middle of the drain 5 (see FIGS. 9 and 10 ). Thereby, the housing 51 is assembled into the drain channel 5, and the internal space 51A of the housing 51 constitutes a part of the drain channel 5.

The internal space of the cylindrical portion 52 communicates with the internal space 51A of the housing 51 from the front side Y1 as a circular port 52A. A circular stepped portion 52B is provided in the middle of the cylindrical portion 52 defining the inner peripheral surface of the inlet 52A. Thus, the inner peripheral surface of the cylindrical portion 52 has a larger diameter in the front region on the front side Y1 than the stepped portion 52B compared to the rear region on the rear side Y2 than the stepped portion 52B. A lock claw 52C extending in the circumferential direction is provided in the front area of the inner circumferential surface of the cylindrical portion 52. A plurality of lock claws 52C may be provided. In this case, the lock claws 52C are arranged along the circumferential direction of the inner circumferential surface of the cylindrical portion 52.

Each holder 53 is formed with a through hole 53A. By inserting a screw (not shown) through the through hole 53A and assembling the case 2, the entire receiving portion 31 is fixed to the case 2. The receiving portion 31 can be regarded as a part of the case 2.

The vertical plate 54 is formed into a substantially rectangular frame shape when viewed from the front side Y1. The entrance 52A of the cylindrical portion 52 is exposed from the inside of the vertical plate 54 to the front side Y1. The front ends of the upper right guide groove 57A, the lower right guide groove 57B, the upper left guide groove 58A, and the lower left guide groove 58B in the housing 51 are opened from the entrance 52A to the front side Y1. The vertical plate 54 may constitute a part of the front surface 2A (see FIG. 1) of the case 2. The entrance 52A and these guide grooves face the front side Y1 from the front surface 2A of the case 2. The lower portion of the vertical plate 54 constitutes a part of the bracket 53 on the front side Y1.

Next, the attachment and detachment of the drain filter 6 to the receiving portion 31 will be described. 10 is a plan view of the receiving portion 31 and the drain filter 6 in the middle of attachment and detachment. FIG. 11 is a BB cross-sectional view of FIG. 10. 12 is a plan view of the receiving portion 31 and the drain filter 6 that has been attached. 13 is a CC cross-sectional view of FIG. 12.

When attaching the drain filter 6, referring to FIG. 11, first, the user holds the handle 35B in the operation portion 35 of the main body 32 of the drain filter 6 and moves the main body 32 to the front side Y1 of the entrance 52A of the receiving portion 31. At this time, the comb-tooth portion 33 of the drain filter 6 is at the exit position (see FIG. 4). Then, the user moves the main body 32 to the rear side Y2 and inserts the entrance 52A from the side of the storage portion 34.

Then, the accommodating portion 34 passes through the entrance 52A and is accommodated in the internal space 51A of the housing 51 of the receiving portion 31. In addition, the right lateral guide portion 39A of the housing portion 34 is received at the front end of the upper right guide groove 57A in the housing 51 and advances toward the rear side Y2 in the upper right guide groove 57A (see FIGS. 4 and 9 ). In addition, the left lateral guide portion 40A of the housing portion 34 is received at the front end of the upper left guide groove 58A in the housing 51 and advances to the rear side Y2 in the upper left guide groove 58A. In addition, the right lateral guide portion 33EA of the comb-teeth portion 33 of the drain filter 6 is received at the front end of the lower right guide groove 57B in the housing 51 and advances to the rear side Y2 in the lower right guide groove 57B (refer to FIGS. 4 and 5 9). In addition, the left lateral guide 33FA of the comb-tooth portion 33 is received at the front end of the lower left guide groove 58B in the housing 51 and advances toward the rear side Y2 in the lower left guide groove 58B.

As described above, the right lower rib 57C (refer to FIG. 9) dividing the right lower guide groove 57B from the lower side Z2 approaches the upper right guide groove 57A as it approaches the rear side Y2. In addition, the left lower rib 58C that divides the left lower guide groove 58B from the lower side Z2 approaches the upper left guide groove 58A as it approaches the rear side Y2. Therefore, as the accommodating portion 34 is accommodated in the internal space 51A, the right lateral guide 33EA and the left lateral guide 33FA of the comb-tooth portion 33 are pushed upward from the lower side Z2 by the lower right rib 57C and the lower left rib 58C, respectively. As a result, the comb-tooth portion 33 rises from the exit position toward the entry position. In this way, the right lower rib 57C and the left lower rib 58C function as an example of a guide portion that allows the comb tooth portion 33 to enter the entry position side as the drain filter 6 is attached to the receiving portion 31. By the lower right rib 57C and the lower left rib 58C, the comb-tooth portion 33 can smoothly enter.

As shown in FIG. 13, when the seal 43 of the front wall 42 of the storage portion 34 comes into contact with the stepped portion 52B in the entrance 52A of the storage portion 34 from the front side Y1, the entire storage portion 34 is stored in the internal space 51A, thereby completing Attachment of the drain filter 6 to the receiving portion 31. In this state, the internal space 51A is blocked by the front wall 42 from the front side Y1, and the gap between the front wall 42 and the stepped portion 52B is blocked by the seal 43. The user rotates the operation portion 35 by grasping and twisting the handle 35B in the operation portion 35. Thus, when the locking claw 52C (refer to FIG. 9) in the entrance 52A enters the locking groove 35C (refer to FIG. 4) of the disc portion 35A of the operating portion 35, the operating portion 35 cannot move in the front-rear direction Y, so the drainage is filtered The device 6 is locked in a state of being attached to the receiving portion 31.

In the drainage filter 6 attached to the receiving portion 31, the accommodating portion 34 of the main body 32 is disposed in the internal space 51A of the housing 51 of the receiving portion 31, that is, within the drainage path 5, and the comb-tooth portion 33 is disposed at the accommodating position. That is, as the drainage filter 6 is attached to the receiving portion 31, the comb-tooth portion 33 moves to the storage position, and each tooth needle 33D of the comb-tooth portion 33 enters the storage chamber 34A in the storage portion 34 of the body 32 (refer to FIG. 8). With the inclination of the casing 51, the accommodating portion 34 in the drainage channel 5 is inclined with respect to the horizontal direction H so as to descend as approaching the rear side Y2.

In the state where the drain filter 6 is attached to the receiving portion 31, the washing operation is performed in the washing machine 1. At this time, if the drain valve 12 is opened, the drain flowing from the washing tub 13 to the drain path 5 is discharged from the top wall of the housing 51 The inlet 56B of 56 flows down into the storage chamber 34A of the storage section 34 in the internal space 51A of the housing 51. Drainage flows down to the rear side Y2 in the storage chamber 34A, flows out of any one of the outlet 38A, the outlet 39B, the outlet 40B, and the outlet 41A in the storage portion 34, and passes through the outlet 58F of the left wall 58 of the housing 51 to the drainage path 5. The downstream end. The drain flowing to the rear side Y2 in the storage chamber 34A passes through the periphery of any one of the tooth pins 33D in the comb-tooth portion 33 at the entry position, so the foreign matter F contained in the drain is caught by the tooth pin 33D and captured (refer to FIG. 8). Thereby, in the main body 32, the captured foreign matter F is wound around the tooth needle 33D.

In the drain filter 6 attached to the receiving portion 31, the handle 35B is exposed from the front surface 2A of the cabinet 2. When the drain filter 6 is detached, first, the user holds the handle 35B and rotates the operation portion 35 in the opposite direction to the attachment. Thereby, the locking claw 52C (refer to FIG. 9) in the entrance 52A is disengaged from the locking groove 35C (refer to FIG. 4) of the disc portion 35A of the operating portion 35, thereby unlocking the drain filter 6, so that the operating portion 35 can Move in the front-rear direction Y. Next, the user holds the handle 35B and pulls it toward the front side Y1 to move the main body 32 to the front side Y1.

Then, as shown in FIG. 11, the accommodating portion 34 of the main body 32 moves from the internal space 51A of the housing 51 of the receiving portion 31 to the front side Y1 and is pulled out from the entrance 52A. In addition, the right lateral guide 39A of the accommodating portion 34 moves to the front side Y1 and is separated from the upper right guide groove 57A in the housing 51 (refer to FIGS. 4 and 9 ). In addition, the left lateral guide portion 40A of the housing portion 34 moves to the front side Y1 and is separated from the upper left guide groove 58A in the housing 51. In addition, the right lateral guide portion 33EA of the comb-teeth portion 33 of the drain filter 6 moves to the front side Y1 in the lower right guide groove 57B of the housing 51 (refer to FIGS. 4 and 9 ). In addition, the left lateral guide 33FA of the comb-tooth portion 33 moves to the front side Y1 in the lower left guide groove 58B of the housing 51.

The rear portion 57DB of the right upper rib 57D dividing the lower right guide groove 57B from the upper side Z1 is separated from the upper right guide groove 57A as it approaches the front side Y1 (refer to FIG. 9 ). The rear portion 58DB of the left upper rib 58D dividing the lower left guide groove 58B from the upper side Z1 is separated from the upper left guide groove 58A as it approaches the front side Y1. Therefore, as the accommodating portion 34 of the main body 32 is pulled out from the internal space 51A and the entrance 52A of the housing 51 of the receiving portion 31 to the front side Y1, the right lateral guide 33EA and the left lateral guide 33FA of the comb-tooth portion 33 are respectively The rear portion 57DB of the right upper rib 57D and the rear portion 58DB of the left upper rib 58D are pressed downward from the upper side Z1. Thus, the comb-tooth portion 33 descends from the storage position toward the exit position. In this way, the right upper rib 57D and the left upper rib 58D function as an example of a guide portion that retracts the comb tooth portion 33 toward the exit position side as the drain filter 6 is detached from the receiving portion 31. By the upper right rib 57D and the upper left rib 58D, the comb tooth portion 33 can be smoothly withdrawn.

Then, when the accommodating portion 34 of the entire main body 32 is pulled out to the front side Y1 of the inlet/outlet 52A of the receiving portion 31, the detachment of the drain filter 6 from the receiving portion 31 is completed. At this time, the comb-tooth portion 33 of the drain filter 6 is arranged at the exit position. That is, as the drain filter 6 is detached from the receiving portion 31, the comb-teeth portion 33 moves to the withdrawn position, and each tooth needle 33D of the comb-teeth portion 33 exits from the storage chamber 34A in the storage portion 34 of the main body 32 and hides (See Figure 6). At this time, since the above-mentioned urging member 44 always urges the comb tooth portion 33 toward the exit position, each tooth needle 33D is thereby completely hidden from the storage chamber 34A.

As described above, when the drain filter 6 is detached from the receiving portion 31, the comb-teeth portion 33 is withdrawn from the storage chamber 34A, whereby the foreign matter F wrapped around the tooth needle 33D of the comb-teeth portion 33 is automatically removed from the tooth needle 33D and Collected in the storage room 34A (refer FIG. 6). Therefore, in order to perform maintenance, the user can smoothly take out the foreign matter F from the storage chamber 34A of the detached drain filter 6, so that the maintenance of the drain filter 6 becomes simple. In addition, since there is no small hole in the accommodating portion 34 that is likely to be entangled with a long foreign object F such as a thread or hair, the user does not need to spend time to remove the foreign object F wound on the accommodating portion 34. Therefore, the maintainability of the drain filter 6 can be improved.

In the comb tooth portion 33 that advances and retreats between the entry position and the exit position, each tooth pin 33D of the comb tooth portion 33 is inserted into the insertion hole 36D of the bottom plate 36A of the attachment 36. The gap between the peripheral edge portion of the insertion hole 36D in the bottom plate 36A and the tooth needle 33D is filled with the cylindrical portion 37B of the seal portion 37 (see FIGS. 6 and 8 ). Therefore, foreign matter F can be prevented from entering the gap. Therefore, the trouble of removing the foreign matter F entering the gap is eliminated, and thus the maintainability of the drain filter 6 is further improved. It should be noted that at least one of the sealing portion 37 and the attachment 36 may be formed integrally with the housing portion 34.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope described in the technical solutions.

For example, in the drum-type washing machine 1 in the above embodiment, the inner tub 7 may be arranged so that the axis J is inclined in the horizontal direction H. In addition, the washing machine 1 may be a vertical washer-dryer with the axis J extending longitudinally.

Claims

A washing machine is characterized by comprising:

Cabinet

The washing cylinder is arranged in the box, and contains washing materials and can store water;

A drainage channel to discharge the water in the washing tub to the outside of the box; and

The drainage filter, disassembled and assembled on the drainage path, has:

The main body is disposed in the drainage channel as the drainage filter is attached to the drainage channel; and

The comb portion is movably supported by the main body, enters the main body as the drainage filter is attached to the drainage path, and moves away from the position as the drainage filter is detached from the drainage path Quit within the subject,

In a state where the drainage filter is attached to the drainage channel, the comb-tooth portion captures foreign matter contained in the drainage flowing through the drainage channel in the body.
The washing machine according to claim 1, further comprising:

The guide portion advances and retreats the comb-tooth portion as the drainage filter is attached to the drainage path.
The washing machine according to claim 1 or 2, wherein

The main body is formed with an insertion hole through which the comb-tooth portion for advancing and retreating is inserted,

The drain filter further includes a sealing portion that fills a gap between the peripheral edge portion of the insertion hole in the main body and the comb tooth portion.