JP6060388B2 - Washing machine - Google Patents

Description

  The present invention relates to a washing machine including a filter device that collects foreign matter such as lint and hair, clothes buttons, clothes accessories, and the like contained in washing water from the washing water.

  Conventionally, this type of washing machine includes an outer tub that stores a rotatable inner tub and stores washing water, and a filter device that collects foreign substances contained in the washing water flowing out from the bottom of the outer tub. It is disclosed (for example, see Patent Document 1).

  FIG. 9 is a cross-sectional view showing a filter device of a conventional washing machine described in Patent Document 1. As shown in FIG. In FIG. 9, the filter device 100 includes a cylindrical filter case 150 and a filter body 151 accommodated in the filter case 150.

  The filter body 151 is formed between a disc-shaped sealing flange 157 connected to the inner end of the sealing cap 152 so as to be relatively rotatable, and an end flange 158 positioned to enter the filter case 150 by an appropriate length. It is built in. The filter case 150 is a cylindrical body whose upper part is flattened, and the filter body 151 is a semi-cylindrical member opened on one side, and is inserted into the filter case 150 with the open side facing upward, The upper edge of both sides is pressed against the inner surface of the filter case 150 so that the lower crescent-shaped space is liquid-tightly divided from the upper space.

  A large portion of the filter body 151 mounted in this way is provided with a dense filter portion 151a in which small-area rectangular filters are arranged side by side in the vertical and horizontal directions, and in the vicinity of the front end (on the sealing flange 157 side). In some cases, a coarse filter portion 151b is provided, in which rectangular filters having an area larger than that of the dense filter portion 151a are arranged side by side in the vertical and horizontal directions. Here, the size of the filter of the dense filter unit 151a is set so as to be able to capture the fiber waste that is the main object, and the size of the filter of the coarse filter unit 151b allows the passage of the fiber waste. The minimum of the objects to be captured other than the fiber waste, for example, the button of the shirt is set to be captured.

JP 2006-255317 A

  However, in the conventional configuration, the lint / hair mixed in the washing water flowing in from the case inflow passage is collected so as to get entangled with the filter when passing through the filter. The filter can be clogged with lint, hair, etc. collected by repeated washing operations, so it can be removed from the opening provided at one end of the filter case and the collected matter is removed. The original filter performance is maintained by re-mounting. However, when the lint / hair is entangled with the filter eyes, there is a problem that it is very troublesome for the user to remove the entangled lint / hair from the filter.

  This invention solves the said conventional subject, and it aims at providing the washing machine provided with the filter member which can remove the collected foreign material easily.

In order to solve the above-described conventional problems, a washing machine of the present invention includes a water tank for storing washing water, a rotating drum rotatably disposed in the water tank, and washing water that flows out from the bottom of the water tank. Passes through the case member, the case inflow passage provided in the case member and flowing out of the bottom of the water tank, and the wash water provided in the case member and flowing in from the case inflow passage from the case member. A case discharge passage that flows out, a circulation pump connecting portion that is provided in the case member and connected to a circulation pump, and is detachably provided in the front and rear direction of the case member and is located between the case inflow passage and the case discharge passage. and a filter member, by the circulation pump is operated, the washing water flowing from the case inlet portion to the casing member from the circulation pump connection The washing water flowing into the ring pump and further flowing into the circulation pump is configured to be injected into the rotary drum from an injection port provided in the water tank via a circulation path connected to the circulation pump. The filter member has a bottom portion and side portions formed at left and right end portions of the bottom portion. The bottom portion is provided with a plurality of bowl-shaped through holes, and the plurality of bowl-shaped through holes are divided into left and right. As described above, the first belt-like portion not provided with the bowl-shaped through-hole having a width wider than the bowl-shaped through-hole is arranged in a substantially straight line in the front-rear direction, and the case inflow passage is provided on the top surface of the case member and the circulation The pump connection portion and the case discharge path are provided on one side surface of the case member, and the second side portion of the filter member mounted so as to face the one side surface is provided on the bottom portion. Nogata A plurality of bowl-shaped through holes having the same shape as the hole are provided, and the first side portion of the filter member that is mounted so as to face the other side surface facing the one side surface is formed on the bottom portion and the second side portion. A plurality of saddle-shaped through-hole rows in which a plurality of saddle-shaped through-holes that are longer in the front-rear direction than the provided saddle-shaped through-holes are arranged in the up-down direction, and the width between the saddle-shaped through-hole rows is longer than that of the saddle-shaped through-holes long in the front-back direction A second belt-like portion not provided with a wide saddle-shaped through hole is provided .

As a result, the first belt-like portion that is not provided with a bowl-shaped through hole that is wider than the bowl-shaped through hole is traced in the bowl-shaped through hole of the filter member by tracing in the front-rear direction with daily items such as nails, fingertips, chopsticks, and toothbrushes. The second strip formed in the front-rear direction can be easily collected by collecting most of the collected lint, hair, etc., without reducing the flow of washing water discharged from the other side. By tracing up and down with everyday items such as nails, fingertips, chopsticks and toothbrushes, most of the lint and hair collected in the bowl-shaped through hole of the filter member can be collected and easily removed can Ru.

  According to the present invention, most of the lint and hair collected in the saddle-shaped through hole of the filter member can be collected and easily removed from the filter member.

The perspective view which shows the external appearance of the washing machine in Embodiment 1 of this invention. Schematic longitudinal section of the washing machine Exploded perspective view of case member and filter member of the washing machine Sectional drawing of the state with which the filter member was mounted to the case member of the washing machine Side view of filter member on case member of same washing machine (A) The perspective view which shows the 1st state which the filter part of the washing machine collected lint and hair (b) The thread from the 1st state where the filter part of the washing machine collected lint and hair Illustration of removing scraps and hair (A) Perspective view showing a second state in which the filter unit of the washing machine collects lint and hair (b) Yarn from the second state in which the filter unit of the washing machine collects lint and hair Illustration of removing scraps and hair (A) The perspective view which shows the 3rd state which the filter part of the washing machine collected lint and hair (b) The thread from the 3rd state where the filter part of the washing machine collected lint and hair Illustration of removing scraps and hair Sectional drawing which shows the filter apparatus of the conventional washing machine

The first invention includes a water tank for storing washing water, a rotating drum rotatably disposed in the water tank, a case member through which washing water flowing out from the bottom of the water tank passes, and the case member A case inflow passage through which washing water flowing out from the bottom of the water tank flows, a case discharge passage through which the washing water flowing from the case inflow passage provided in the case member flows out of the case member, and provided in the case member A circulation pump connecting portion to which the circulation pump is connected, and a filter member provided detachably in the front-rear direction on the case member and positioned between the case inflow passage and the case discharge passage, and the circulation pump operates. As a result, the wash water that has flowed into the case member from the case inflow portion flows into the circulation pump from the circulation pump connection portion, and further, Flowing into the pump wash water, the configured via the connected circulation path circulating pump from the injection port provided in the water tub so as to be injected into the rotary within the drum, wherein the filter member comprises a bottom portion, Side portions formed at left and right end portions of the bottom portion, and the bottom portion is provided with a plurality of bowl-shaped through holes, and is wider than the bowl-shaped through holes so as to divide the plurality of bowl-shaped through holes into left and right sides. A first belt-like portion not provided with a wide bowl-shaped through hole is arranged in a substantially straight line in the front-rear direction, the case inflow passage is provided on the top surface of the case member, and the circulation pump connection portion and the case discharge passage are The second side portion of the filter member that is provided on one side surface of the case member and is mounted so as to face the one side surface has a plurality of same shapes as the plurality of bowl-shaped through holes provided in the bottom portion. Provided with a bowl-shaped through hole The first side portion of the filter member mounted so as to face the other side surface facing the one side surface has a bowl-shaped penetration that is longer in the front-rear direction than the bowl-shaped through holes provided in the bottom portion and the second side portion. A plurality of bowl-shaped through-hole rows in which a plurality of holes are arranged in the vertical direction are provided, and a second belt-like portion not provided with a bowl-shaped through-hole wider than the bowl-shaped through-holes long in the front-rear direction is provided between the bowl-shaped through-hole rows. By adopting a washing machine characterized by being arranged, the first belt-like part that does not have a bowl-shaped through-hole wider than the bowl-shaped through-hole is provided in the front-rear direction, such as nails, fingertips, chopsticks, toothbrushes, etc. By tracing the product, most of the lint and hair collected in the bowl-shaped through hole of the filter member can be collected and easily removed without reducing the flow rate of the washing water discharged from the other side. The second belt-shaped part formed in the front-rear direction By tracing up and down with everyday items such as nails, fingertips, chopsticks and toothbrushes, most of the lint and hair collected in the bowl-shaped through hole of the filter member can be collected and easily removed can Ru.

  In the second invention, in particular, the bottom of the first invention has a projection row in which a plurality of projections are arranged at a first predetermined interval in the left-right direction, and is larger than the first predetermined interval in the front-rear direction. By providing a washing machine characterized by providing a plurality of rows at a second predetermined interval, a plurality of tips of nails, fingertips, or daily necessities (chopsticks, toothbrushes, etc.) around the body are relatively thin It can reach the base of the projection of the book, and lint and hair entangled with the plurality of projections can be easily removed.

  In the third aspect of the invention, in particular, by adopting a washing machine in which the second predetermined interval of the second aspect of the invention is 10 mm or more, the tip of the fingernail can surely reach the root of the plurality of protrusions. It is possible to easily remove lint and hair entangled with a plurality of protrusions.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a perspective view showing an appearance of the washing machine according to Embodiment 1 of the present invention, FIG. 2 is a schematic longitudinal sectional view of the washing machine, and FIG. 3 is an exploded perspective view of a case member and a filter member of the washing machine. FIG. 4 is a sectional view of the washing machine with the filter member mounted on the case member, FIG. 5 is a side view of the filter member on the washing machine case member, and FIG. FIG. 6B is a perspective view showing a first state in which the filter unit of the machine collects lint and hair, and FIG. 6B shows the yarn from the first state in which the filter unit of the washing machine collects lint and hair. Fig. 7 (a) is a perspective view showing a second state in which the filter unit of the washing machine collects lint / hair, and Fig. 7 (b) is a view of the washing machine. FIG. 8 (a) is a diagram showing an aspect of removing the lint / hair from the second state in which the filter section collects lint / hair. FIG. 8B is a perspective view showing a third state in which the filter unit of the rinsing machine collects lint and hair, and FIG. 8B shows the yarn from the third state in which the filter unit of the washing machine collects lint and hair. It is an aspect figure which removes scraps and hair.

  In Embodiment 1, the washing machine will be described using a drum type washing machine, and hereinafter referred to as a drum type washing machine.

  As shown in FIG. 1, the drum type washing machine according to the present embodiment is generally configured so as to be openable and closable with respect to the main body 1 with a substantially box-shaped main body 1 and a rotating shaft 2 as fulcrums. The door 3, the operation unit 4 disposed at the top of the first door 3, the operation unit 5 disposed adjacent to the operation unit 4, above the first door 3 and on the display unit 5 There is provided a detergent container 6 which can be opened and closed so that it can be pulled out by placing a hand in the handle portion 40 which is adjacent and recessed with respect to the main body portion 1. In addition, a part of a water feeder 25 described later is exposed on the upper surface of the main body 1.

  A second door body 45 is provided at the lower portion of the main body 1 so as to be openable and closable with respect to the main body 1. When the second door 45 is opened, The filter member 50 is disposed, and the grip 51 of the filter member 50 is exposed.

  When putting clothes into the main body 1 or taking out clothes from the main body 1, the door 3 is opened. In addition, when a powdery powder detergent, liquid detergent, liquid finish or the like is put into the detergent container 6, the detergent container 6 is pulled out from the main body 1. After the powder detergent or the like is put into the detergent container 6, the detergent container 6 is pushed in and stored in the main body 1 side. By operating the operation unit 4, the main unit 1 can be turned on, and various washing courses such as washing, rinsing and dehydration can be selected. The selection result, time information until the selected washing course is completed, various washing process progress statuses, washing completion information, and the like are displayed on the display unit 5.

  Next, each component which the main-body part 1 has is demonstrated.

  As shown in FIG. 2, the main body 1 is provided with a charging port 7 and accommodates an annular packing 8, a rotating drum 10, a water tank 11, and a motor 12.

  The insertion port 7 is formed on the front side of the main body 1 and is closed by the door body 3 so as to be freely opened and closed. By opening the door body 3, clothes can be taken in and out.

  The annular packing 8 is disposed between the charging port 7 and the water tank 11. This prevents clothing from being inserted into the gap between the inlet 7 and the water tank 11 and washing water from falling off.

  The rotating drum 10 is formed in a bottomed cylindrical shape, has a large number of water passage holes 14 on the outer peripheral portion, and is rotatably disposed in a water tank 11 that is swingably supported in the main body 1. . The axial center direction of the rotating drum 10 is inclined downward from the front side toward the back side (shown in the upward direction in FIG. 2). The water passage hole 14 of the rotating drum 10 allows the washing water in the water tank 11 to pass into and out of the rotating drum 10.

  The motor 12 is attached to the back side of the water tank 11 and rotationally drives the rotating drum 10 in the water tank 11 in the forward and reverse directions.

  A plurality of protrusions 13 are provided on the inner wall surface of the rotating drum 10. By providing the stirring operation (tumbling operation) in which the protrusion 13 is rotated at a low speed, the clothes are hooked by the protrusion 13 and lifted upward, and then dropped at an appropriate height. Stir and wash clothes and dry.

  Further, the water tank 11 is supported in a vibration-proof manner with respect to the main body 1 by a damper 15 disposed below the water tank 11 and a spring body 16 disposed above the water tank 11.

  On the upper side of the water tank 11, a water supply device 25, a detergent container 26 including the detergent container 6, and a control unit 27 that includes a printed circuit board and has a control circuit are arranged. The detergent container 26 includes a detergent container 6, a water supply member 30, a water supply member 31, and a connecting pipe member 32.

  A water supply device 25 connected to a water tap is connected to the water supply member 30. The water supply member 31 is provided below the water supply member 30 and holds the detergent container 6 so that it can be pulled out.

  The connection pipe member 32 has one end connected to the water supply member 31 and the other end connected to the water tank 11. As described above, the detergent container 6 can be pulled out with respect to the main body 1, and in FIG. 2, the state of being pulled out from the main body 1 is indicated by a two-dot chain line.

  A drainage port 17 is provided in the lower part on the back side of the water tank 11, and the drainage port 17 is connected to the case member 60 via a drainage pipe 19. A drain cock 18 is attached to the case member 60. When the drain cock 18 is opened, the washing water in the water tank 11 is drained to the outside of the main body 1 via the drain hose 35.

  Further, the circulation pump 21 is attached to the case member 60, and the circulation pump 21 is connected to the injection port 23 provided in the water tank 11 via the circulation path 22. In the washing process, the wash water sucked from the drain port 17 is passed through the case member 60 by the operation of the circulation pump 21 and is jetted from the jet port 23 toward the laundry in the rotary drum 10 to be washed. The washing effect can be enhanced by performing the operation of including the washing water and circulating the washing water. In the case of the rinsing process, the rinsing water sucked from the drain port 17 passes through the case member 60 and is jetted from the jet port 23 toward the laundry in the rotary drum 10, thereby being included in the laundry. The cleaning liquid is removed, and the rinse water is circulated to enhance the rinsing effect.

  In addition, an overflow hose 37 is formed at a lower position on the front surface of the water tank 11 at a position higher than the injection port 23, and the overflow port 36 is connected to the drain hose 35 via the overflow hose 37.

  Furthermore, the filter member 50 is detachably accommodated inside the case member 60.

  Next, it demonstrates using FIG. The case member 60 includes a case inflow passage 61, a case discharge passage 62, a circulation pump connection portion 63, a cock attachment portion 64, a filter member attachment portion 65, and an overflow path connection portion 66.

  A drain pipe 19 is connected to the case inflow path 61 and communicates with a drain port 17 provided at the bottom of the water tank 11. A drain hose 35 is connected to the case discharge path 62. The circulation pump 21 is attached to the circulation pump connection portion 63. The drainage cock 18 is attached to the cock mounting portion 64, and the washing water in the case member 60 is drained to the case discharge path 62 by opening the drainage cock 18. The filter member 50 is detachably attached to the filter member mounting portion 65. An overflow hose 37 is connected to the overflow path connection portion 66 and communicates with an overflow port 36 provided in the water tank 11.

  The case member 60 has a space portion therein, and the filter portion 52 provided on one end side of the grip portion 51 of the filter member 50 is accommodated in the space portion.

  With this configuration, when draining, the drain cock 18 attached to the cock mounting portion 64 is in an open state, so that the washing water flowing in from the case inflow passage 61 passes through the filter portion 52 and then passes through the case discharge passage 62. It passes through and flows out to the drainage hose 35.

  Further, during the operation of the circulation pump 21 during the washing process and the rinsing process, the wash water flowing in from the case inflow passage 61 is caused to flow through the filter unit 52 by the operation of the circulation pump 21 attached to the circulation pump connection part 63. After that, the water is injected from the injection port 23 provided in the water tank 11 toward the laundry in the rotating drum 10 via the circulation pump connection portion 63, the circulation pump 21, and the circulation path 22.

The filter portion 52 is formed long in the attaching / detaching direction, and includes a bottom portion 53, side portions 54 formed at the left and right end portions of the bottom portion 53, and a plurality of bowl-shaped through holes 55 formed in the bottom portion 53 and the side portions 54. . The holding part 51 is provided at one end of the filter part 52. When the second door 45 described above is opened, it is exposed, and when the grip 51 is rotated in a predetermined direction, the lock is released. In this released state, it can be pulled out. Further, the removed filter member 50 can be locked by being inserted into the filter member mounting portion 65 from the outside and rotated in a direction opposite to the predetermined direction described above.

  Next, a description will be given with reference to FIGS. FIG. 4 is a plan view illustrating a state in which the filter member of FIG. 3 is viewed from the direction of the arrow A. The filter portion 52 includes a bottom portion 53, side portions 54 formed at the left and right end portions of the bottom portion 53, and a rear portion 49 that forms the rear side of the filter member 50.

  The case inflow path 61 is formed on the upper surface side of the case member 60, and is configured such that the inflowing washing water falls on the filter portion 52. Further, a case discharge passage 62, a circulation pump connection portion 63, and a cock mounting portion 64 are formed on the left side (lower side in FIG. 4) when viewed from the front of the case member 60, and the side portion 54 of the filter portion 52 is Among these, the right side (upper side in FIG. 4) when viewed from the front is the first side part 54a, and the left side (lower side in FIG. 4) is the second side part 54b when viewed from the front.

  The bottom portion 53 has a plurality of bowl-shaped through holes 55. The plurality of bowl-shaped through-holes 55 have a substantially rectangular shape with a long side having a length a and a short side having a length b, and a plurality thereof are arranged with a gap c in the long side direction. Further, the gaps d are arranged with a gap d in the short side direction. The plurality of bowl-shaped through-holes 55 includes a first row hole group 56 located on the right side (upper side in FIG. 4) when viewed from the front and a second row hole located on the left side (lower side in FIG. 4) when viewed from the front. A first belt-like portion 58 is provided between the first row hole group 56 and the second row hole group 57. The first belt-like portion 58 has a gap e so as to divide the plurality of saddle-shaped through holes 55 into left and right first row hole groups 56 and second row hole groups 57. The gap e is arranged substantially linearly in the front-rear direction with a width wider than the length b of the short side of the bowl-shaped through hole 55. Preferably, the width is about b <e <b + 3c.

  Furthermore, the bottom 53 has a plurality of protrusions 67. The plurality of protrusions 67 are provided with a plurality of protrusions arranged in the left-right direction with an interval f, and a plurality of protrusions (first protrusion row 68, second protrusion row 69) in the front-rear direction with an interval g. . The interval g is approximately twice as large as the interval f.

  According to "A collection of human body dimensions for design" (1994) published by National Institute of Biotechnology, the distal joint width of the second finger is described as 14 mm (95th percentile). In consideration of this, and in order to facilitate cleaning with a finger, the interval g is preferably 10 mm or more.

As shown in FIG. 5, the first side portion 54 a also has a plurality of bowl-shaped through holes 55 that are long in the front-rear direction. The bowl-shaped through-hole 55 has a substantially rectangular shape with a long side having a length h and a short side having a length i, and a plurality of bowl-shaped through-hole rows arranged with a gap j in the vertical direction are provided at intervals k. A plurality of rows (first bowl-shaped through-hole row 71, second bowl-shaped through-hole row 72) are provided in the direction, and the first bowl-shaped through-hole row is provided between the first bowl-shaped through-hole row 71 and the second bowl-shaped through-hole row 72. 71 and the second belt-like portion 59 not provided with the bowl-shaped through-holes wider than the second bowl-shaped through-hole row 72 are disposed.

  Next, the flow of washing water will be described.

  The washing water in the water tank 11 is discharged out of the machine when the drain cock 18 is opened. Specifically, when the drain cock 18 is opened due to the operation, the washing water in the water tank 11 enters the case member 60 from the case inflow passage 61, and the wash water in the bottom 53 has a plurality of bowl-shaped through holes. After passing through 55, it is discharged to the case discharge path 62 as indicated by arrow B.

On the other hand, when the circulation pump 21 operates while the drain cock 18 is stopped (when the drain cock 18 is closed), the washing water in the water tank 11 passes through the case inflow passage 61 and passes through the plurality of bowl-shaped through holes 55 in the bottom 53. After that, as indicated by an arrow C, the water passes through the circulation pump connection portion 63 and is supplied to the water tank 11 again.

  That is, the wash water discharged from the water tank 11 is supplied to the water tank 11 outside the apparatus or again, and this wash water is configured to pass through the filter unit 52 without fail.

  Next, a description will be given with reference to FIGS.

  FIG. 6A shows a state in which lint and hair 70 are inserted into the hook-shaped through hole 55 sandwiching the first belt-like portion 58. As shown in FIG. 6 (b), the user moves the first belt-like portion 58, which is not provided with the bowl-shaped through hole 55 wider than the bowl-shaped through hole 55, in the front-rear direction as indicated by the arrow, By tracing with everyday items such as chopsticks and toothbrushes, most of the lint and hair 70 caught by the first band-like portion 58 by the bowl-shaped through hole 55 of the filter member 50 are collected and made into a lump. The lint / hair 70 can be easily removed from the member 50.

  FIG. 7A shows a state in which lint and hair 70 are collected so as to be wound around one protrusion 67. The plurality of protrusions 67 includes a plurality of protrusions arranged in the left-right direction with an interval f, and a plurality of protrusions (first protrusion row 68, second protrusion row 69) in the front-rear direction with an interval g. Since the interval g is approximately twice as large as the interval f (the interval g is 10 mm or more), as shown in FIG. 7B, the nail, the fingertip, or the tip of the body around the body is relatively thin. The tip of daily necessities (chopsticks, toothbrushes, etc.) can reach the root of the protrusion 67 even between the first protrusion row 68 and the second protrusion row 69. By lifting the fingertip, the lint / hair 70 entangled with the plurality of protrusions 67 can be easily removed.

  FIG. 8A shows a state in which the lint / hair 70 is inserted into the hook-shaped through hole 55 sandwiching the second belt-like portion 59. As shown in FIG. 8 (b), the user moves the second band-shaped portion 59 that does not have the bowl-shaped through hole 55 wider than the bowl-shaped through hole 55 upward, as indicated by an arrow, By tracing with everyday items such as chopsticks and toothbrushes, most of the lint and hair 70 caught by the second band 59 by the hook-shaped through hole 55 of the filter member 50 are gathered together to form a lump. The lint and hair can be easily removed from the member 50.

  As described above, the washing machine according to the present invention collects most of the lint / hair collected in the bowl-shaped through hole of the filter member and can easily remove it from the filter member. Not only can it be applied to pulsator type washing machines.

DESCRIPTION OF SYMBOLS 11 Water tank 45 2nd door body 50 Filter member 51 Holding part 52 Filter part 53 Bottom part 54 Side part 54a 1st side part 54b 2nd side part 55 Saddle-shaped through-hole 56 1st row hole group 57 2nd row hole group 58 1st Belt part 59 Second belt part 60 Case member 61 Case inflow path 62 Case discharge path 63 Circulating pump connection part 64 Cock attachment part 65 Filter member attachment part 66 Overflow path connection part 67 Projection 68 First projection row 69 Second projection row 70 Lint and hair

Claims (3)

A water tank for storing washing water, a rotating drum rotatably disposed in the water tank, a case member through which washing water flowing out from the bottom of the water tank passes, and a bottom part of the water tank provided in the case member A case inflow passage through which wash water flowing out from the case flows, a case discharge passage provided in the case member from which the wash water flowing in from the case inflow passage flows out of the case member, and a circulation pump provided in the case member are connected. A circulating pump connection portion, and a filter member that is detachably provided in the case member in the front-rear direction and is located between the case inflow passage and the case discharge passage,
When the circulation pump is operated, the wash water that has flowed into the case member from the case inflow portion flows into the circulation pump from the circulation pump connection portion, and the wash water that has flowed into the circulation pump Configured to be injected into the rotating drum from an injection port provided in the water tank via a circulation path connected to a pump;
The filter member has a bottom portion and side portions formed at left and right end portions of the bottom portion, and the bottom portion is provided with a plurality of bowl-shaped through holes, and the plurality of bowl-shaped through holes are divided into left and right. A first belt-like portion not provided with a bowl-shaped through hole having a width wider than that of the bowl-shaped through hole is arranged in a substantially straight line in the front-rear direction ,
The case inflow path is provided on the top surface of the case member, and the circulation pump connection portion and the case discharge path are provided on one side surface of the case member and are mounted so as to face the one side surface. The second side portion of the filter member is provided with a plurality of bowl-shaped through holes having the same shape as the plurality of bowl-shaped through holes provided in the bottom portion,
The first side portion of the filter member mounted so as to face the other side surface facing the one side surface has a bowl-shaped penetration that is longer in the front-rear direction than the bowl-shaped through holes provided in the bottom portion and the second side portion. A plurality of bowl-shaped through-hole rows in which a plurality of holes are arranged in the vertical direction are provided, and a second belt-like portion not provided with a bowl-shaped through-hole wider than the bowl-shaped through-holes long in the front-rear direction is provided between the bowl-shaped through-hole rows. A washing machine characterized by being arranged . On the bottom portion, a plurality of protrusions in which a plurality of protrusions are arranged with a first predetermined interval in the left-right direction are provided in a plurality of rows with a second predetermined interval larger than the first predetermined interval in the front-rear direction. The washing machine according to claim 1. The washing machine according to claim 2, wherein the second predetermined interval is 10 mm or more.

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