JP2000354697A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To capture thread waste, dust, etc., from the inside of circulating water mainly in the case of washing at a lower water level than a maximum specified water level. SOLUTION: In the case of washing at a lower water level than a maximum specified water level H by locating the water outlet 26 of a water channel 21, which passes water in an inner chamber 15 fed under pressure by the rotation of a pulsator 18 by pump vanes 20 through a filter 34, lower than the location of a maximum specified water level H in the inner chamber 15, the distance between the water surface and the water outlet 26 of the water channel 21 does not become long, and the pump head of a pump is prevented from becoming large. In addition, in this case, the water outlet 26 of the water channel 21 is longitudinally long, and the filter 34 is detachable and comprises a net bag.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine having an improved structure in which water in a washing tub is circulated through a water channel provided in the washing tub to capture lint and the like from the circulating water.

[0002]

2. Description of the Related Art Conventionally, in a washing machine, a washing tub is provided with a water passage extending from the bottom to the top, a filter is provided at a water outlet at the tip (upper end) of the washing tub, and a washing tub is provided at an inner bottom of the washing tub. A pump blade is provided on the back side of the located pulsator, and the pump blade performs circulation that returns water in the washing tub that is pumped by the rotation of the pulsator into the washing tub through the above-described water channel, and from the circulating water, it is included in this. A lint that is trapped by the above-mentioned filter is provided.

However, in this case, the tip of the water channel is located above the highest water level among the specified water levels in the washing tub, that is, above the highest specified water level, and therefore, the water outlet at the tip of the water channel is located at the top. The circulating water is discharged toward the surface of the water stored in the washing tub.

[0004]

In the case of the above, it is good to wash water with water up to the maximum specified water level in the washing tub. However, when washing at a lower water level, the water level from the water surface is high. The distance to the water outlet of the water channel increases, that is, the head of the pump increases. For this reason, the amount of circulating water decreases, and it becomes impossible to effectively capture lint, dust, and the like.

[0005] In particular, a washing machine of recent years has a large washing capacity. However, even in this case, the user does not always wash a large amount of laundry, but rather often washs a smaller amount of laundry. In such a case,
The water level in the washing tub is lower than the maximum specified water level, and the distance from the water surface to the water outlet of the water channel increases, and the pump lift increases, reducing the amount of circulating water, lint, litter, etc. Could not be effectively captured.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and its object is mainly to capture lint, garbage and the like from circulating water when washing at a water level lower than the maximum specified water level. It is to provide a washing machine that can be made to work.

[0007]

In order to achieve the above object, in a washing machine according to the present invention, a washing tub, a pulsator provided at the inner bottom of the washing tub, and a backside of the pulsator are provided. A pump blade, and a water outlet for discharging the water passed through the washing tub, which is provided in the washing tub so that the pump blade pumps the water by the rotation of the pulsator, is provided with a maximum specified water level in the washing tub. A water channel having a vertically long position below the position and having a filter mounting portion around the water discharge port, and detachably mounted on the filter mounting portion of the water channel so as to face the water discharge port and discharge from the water discharge port. And a filter having a net bag for catching lint, dust and the like from the water to be produced (the invention of claim 1).

[0008] According to this, since the water outlet of the water channel is located below the maximum specified water level in the washing tub, when washing at a water level lower than the maximum specified water level, the water outlet of the water channel from the water surface. The distance to the pump does not increase, and the pump head does not increase. In addition, since the water outlet of the water channel is vertically long, even if the water level is lower than the maximum specified water level, the above-mentioned operation can be obtained with almost no change corresponding to the difference in the water level in a longer range.

In addition, since the filter has a net bag, it is possible to capture lint, dust, and the like in a wide area, and to increase the storage thereof. Further, since the filter is detachable, cleaning for removing trapped and stored lint, dust, and the like, that is, regeneration of the capture performance of the filter can be easily and desirably performed with the filter removed.

In this case, the filter has an engaging portion and a hook portion, and the filter attaching portion has an engaging receiving portion for engaging the engaging portion by moving the filter in the vertical direction, and the hook portion. The filter is attached to the filter mounting portion by the engagement of the hook receiving portion, and the filter is removed by operating the hook portion with a finger to release the engagement with the hook receiving portion. It is desirable to make it possible (the invention of claim 2). In this case, the attachment and detachment of the filter can be mainly facilitated mainly by the vertical movement of the filter.

Further, the filter preferably has a chamfered portion on the back side of the lower end portion (the invention of claim 3). In this configuration, when the filter is mounted, the filter can be inserted further into the chamfered portion, so that the filter can be mounted smoothly.

Further, it is preferable that the filter mounting portion has an obtuse inclined surface portion on the upper portion (the invention of claim 4). In this case, when the filter is removed, the filter is guided to the inside of the washing tub along the inclined surface of the filter mounting portion, so that the filter can be removed smoothly. or,
In this case, even if the user makes a mistake in removing the filter by inserting a finger below the inclined surface portion and lifting the filter, the user's finger hits the obtuse inclined surface portion and at a right angle or an acute angle portion, Since it is not, the user can be prevented from feeling painful.

[0013] On the other hand, the hook portion is provided on the filter so as to be elastically deformable, and has a finger hook portion protruding inward of the washing tub when the filter is mounted. It is preferable to have a protruding portion that comes into contact with the wall surface of the portion (the invention of claim 5). In this one,
At the time of removing the filter, the hook portion is elastically deformed with the projection on the opposite side as a fulcrum by lifting the hook portion with a finger on the finger portion. Thus, the engagement of the filter with the hook receiving portion is released with a small operation force.

The filter mounting portion preferably has a space for moving the filter above the filter when the filter is mounted, and a cover for covering the space. (The invention of claim 6). In this case, since the space above the filter for moving the filter is covered with the cover, it is possible to prevent the laundry from getting caught on the front edge of the space during washing or taking out the laundry.

In the washing machine of the present invention, the washing tub, the pulsator provided on the inner bottom of the washing tub, the pump blade provided on the back side of the pulsator, and the pump blade are pumped by the rotation of the pulsator. A water outlet provided in the washing tub so as to allow water in the washing tub to pass therethrough and discharging the water therethrough is located below the highest specified water level position in the washing tub, and the water outlet around the water outlet is provided. A water channel having a filter mounting portion, and a filter mounting portion of the water channel, which is attached to the filter mounting portion so as to be detachably attached to the water discharge port, and to be rotated by a water flow in a washing tub generated by the pulsator. The filter is characterized in that a filter is provided which has an inlet facing the water outlet through movement and also facing a water flow in the washing tub (claim 7).

[0016] Also in this case, the water outlet of the water channel is located below the maximum specified water level in the washing tub. Therefore, when washing at a water level lower than the maximum specified water level, from the water surface to the water outlet of the water channel. Does not increase, and the pump head does not increase. In addition, since the filter has a net bag, it is possible to capture lint, dust, and the like in a wide area, and to increase the storage thereof. Furthermore, since the filter is removable, the captured and stored lint,
Cleaning for removing dust and the like, that is, regeneration of the capturing performance of the filter can be easily and desirably performed with the filter removed. In this case, the filter effectively captures lint, dust, and the like not only from the circulating water but also from the water flow in the washing tub.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, FIG. 1 shows the entire configuration of a washing machine, especially a fully automatic dehydration / washing machine. Inside an outer box 1, an outer tub 2 is provided with a plurality of (only one is shown) hanging rods. 3 and supported by an elastic support mechanism 4. The outer tub 2 has a bottomed cylindrical shape, and a motor 5 is provided outside and below the bottom.
And a mechanism unit 9 having a belt transmission mechanism 6, a clutch mechanism 7, and a brake mechanism 8, and a drain valve 10 and a drain hose 11 for discharging water from the outer tub 2 are also provided. are doing.

A ring-shaped tank cover 12 is mounted on the upper edge of the outer tank 2, and the overflow water channel 1 is provided on the outer side of the outer tank 2.
3 and an air trap 14 for detecting a water level. An inner tank 15 is rotatably disposed inside the outer tank 2. The inner tub 15 also has a cylindrical shape with a bottom and functions as a washing tub and also as a dehydration tub. In this relation, the inner tub 15 has a large number of dehydration holes 16 on the peripheral side, At the upper end, for example, a rotary balancer 17 having a liquid-filled ring shape is provided.

A pulsator 18 is provided at the inner bottom of the inner tank 15. The pulsator 18 has, for example, radial water flow generating blades 19 for generating a washing water flow in the inner tub 15 on the front upper surface, and has the same radial pump blades 20 on the lower rear surface. . The above-mentioned mechanism 9 stops the inner tub 15 at the time of washing and alternately rotates the pulsator 18 in both forward and reverse directions. At the time of dehydration, the pulsator 18 moves together with the inner tub 15 in one direction at a high speed. It is designed to rotate.

The first water passage 21 and the second water passage 22 are provided, for example, symmetrically inside the inner tank 15. These water passages 21 and 22 are formed, for example, by a plastic water passage cover 2 from the inner bottom to the peripheral side of the inner tank 15.
The lower end, which is a base end of the pulsator 18, communicates with a pump chamber 25 at the bottom of the inner tank 15 where the pump blade 20 of the pulsator 18 is located.

The water channels 21, 22 extending upward.
Water outlets 26 and 27 are formed at the distal ends of the (water channel covers 23 and 24), respectively.
The first water outlet 26 has a maximum specified water level H when the inner tub 15 is washed.
Is located below the position of, facing the inside of the inner tank 15,
The water outlet 27 of the water channel 22 is located above the position of the maximum specified water level H and faces the inside of the inner tank 15.

The maximum specified water level H when washing the inner tub 15
Is the water level detection tube 28 from the air trap 14 described above.
Is determined by controlling the operation of a water supply valve (not shown) for supplying water into the inner tank 15 based on a result detected by a water level sensor (not shown) via The amount of laundry is determined based on a result of detection by a laundry amount sensor (not shown) or a result of an arbitrary selection operation by a user. However, the present invention is not limited to this. The water level scale may be provided on the inner side surface of the inner tank 15, and the water level may be determined by the user so as to match the water level scale.

The first water channel 21 (water channel cover 23)
As shown in FIG. 2, a filter mounting portion 29 is formed around the water discharge port 26. The filter mounting portion 29 has a vertically long rectangular concave shape that is long in the vertical direction, and the water outlet 26 of the first water channel 21 is located substantially at the center of the depth of the filter mounting portion 29, and It has a vertically long slit shape that is long in the vertical direction.

In the filter mounting portion 29, a plurality of projections 30 shown in FIG. 3 are formed on both left and right inner side surfaces as engagement receiving portions, in this case, three in each case. A claw-shaped projection 31 as a hook receiving portion is formed at a position above the water outlet 26 of the one water channel 21. Further, a reinforcing rib 32 is formed on the back side of the protrusion 31.
An obtuse angled inclined surface portion 33 is formed on an inner upper surface portion which is an upper portion of the filter mounting portion 29.

On the other hand, the filter 34 to be attached to the filter attaching portion 29 is formed by integrally connecting a filter net 36 which is a net bag to a filter frame 35 made of, for example, plastic. Has the same number of protrusions 37 as engagement portions corresponding to the protrusions 30 of the filter mounting portion 29 on both left and right outer side surfaces. The filter frame 35 is formed with a chamfer 38 in the form of an inclined surface at the back of the lower end, and a hook 39 at the top.

The hook portion 39 has an upper end connected to the filter frame 35 by a curved elastic portion 40 and another peripheral portion separated from the filter frame 35. A finger hook 41 protruding toward one side,
The lower end has a protrusion 42 protruding on the opposite side. The projection 42 corresponds to the projection 31 of the filter mounting section 29.

In this configuration, in order to mount the filter 34 on the filter mounting portion 29, first, as shown in FIG.
The filter frame 35 is inserted into the filter mounting portion 29 as shown by an arrow A with the chamfered portion 38 in the diagonal direction, and the lowermost protrusion 37 is inserted into the lowermost protrusion 30 of the filter mounting portion 29. It faces the back side (left side in the figure) from above. At this time, the chamfered portion 38 allows the filter 24 to enter a deeper position. Next, as shown in FIG. 4B, the entire remaining filter frame 35 is inserted into the filter mounting portion 29 as shown by the arrow B.

Then, as shown in FIG. 4C, the filter frame 35 is moved downward as shown by the arrow C. Then, all the protrusions 37 which are the engaging portions of the filter 34 reach the inner side of the protrusions 30 which are the engagement receiving portions of the filter mounting portion 29 and engage with them. It elastically engages with the projection 31 which is a hook receiving part of the filter mounting part 29. At this time, the protrusion 37 is directed to the lower end surface, the protrusion 30 is directed to the upper end surface, and the protrusion 37 is directed toward the inner side of the inner tank 15 so that the protrusion 37 is easily engaged with the protrusion 30. The inclined surfaces 37a and 30a facing upward are formed in advance.

Thus, the filter 34 is mounted on the filter mounting portion 29. In this mounted state, the filter 34 is opposed to the water discharge port 26 of the first water channel 21, especially the inside of the filter frame 35 and the filter net 36. The inlet 36a (see FIG. 3) faces the water outlet 26, and the filter net 36 projects inward of the inner tank 15. or,
At this time, a space 43 is left in a portion above the filter frame 35 in the filter mounting portion 29.

On the other hand, to remove the mounted filter 34 from the filter mounting portion 29, as shown in FIG.
With the finger of the user's hand H, the finger hook 41 of the hook 39 is sandwiched between the upper end of the waterway cover 23 and the finger hook 4 is held.
Raise 1 Then, the hook portion 39 is elastically deformed from the elastic portion 40 and the projection 42 is moved to the projection 3 of the filter attaching portion 29.
1 and these engagements are released.

In this state, the force of the user who lifts the finger hook 41 spreads over the entire filter 34. Therefore, the entire filter 34 is lifted by the user's force, and the protrusion 37 and the protrusion 30 are raised. Is disengaged, and
The upper end of the filter frame 35 comes into sliding contact with the inclined surface 33 of the filter mounting portion 29, and the filter frame 35 is guided along the inclined surface 33 toward the inside of the inner tank 15, so that the filter 34 is It is naturally removed to the inward side of.

FIG. 6 shows that when removing the filter 34, a user accidentally puts a finger to be put on the upper end of the water channel cover 23 into the space 43 above the filter frame 35 and puts the finger on the upper end of the filter frame 35. This shows the situation in the event of a multiplication. In this case, originally, the user's finger put in the space 43 hinders the filter 34 from being moved sufficiently upward, but the projection 42 of the hook 39 is connected to the projection 31 of the filter mounting part 29. Can be released from the engagement. When the user tries to forcibly pull out the filter frame 35 as it is, the user's finger hung on the upper end portion of the filter frame 35 hits the upper inside of the filter mounting frame 29, which is an obtuse inclined surface portion 33, It does not hit right or sharp corners. In addition, in addition to the above, the water outlet 27 of the second water channel 22 is also provided with a filter 44 having a net bag as shown in FIG.

Next, the operation and effect of the above configuration will be described. At the time of washing, laundry and detergent (not shown) are put in the inner tub 15, and in this state, when the operation is started, water according to the amount of the laundry is supplied into the inner tub 15. That is, if the amount of laundry is almost the rated amount, water is supplied to the inner tub 15 up to the maximum specified water level H, and if the amount is less than the rated amount,
Water is supplied into the inner tank 15 to a water level lower than the maximum specified water level H. After the water supply, the pulsator 18 is alternately rotated in both the forward and reverse directions while the inner tank 15 is stopped, so that the water flow generating blades 19 move the clockwise and counterclockwise forward in the inner tank 15. The water flow in the opposite two directions is generated alternately, and the laundry is washed.

At the time of this washing, the pump blade 20 pumps water in the inner tub 15 toward the first water passage 21 and the second water passage 22 by the rotation of the pulsator 18, and is indicated by arrows D and E in FIG. As described above, the circulation returning from the water outlets 26 and 27 into the inner tank 15 through the water channels 21 and 22 is performed. In the process of the circulating water passing through the filters 34 and 44 from the spouts 26 and 27, lint and other debris released from the laundry and contained in the circulating water are removed by the filters 3 and 4.
4,44.

At this time, even if the water level in the inner tank 15 is lower than the maximum specified water level H, the water outlet 26 of the first water channel 21 is located below the position of the maximum specified water level H. However, the distance from the water surface to the water outlet 26 of the first waterway 21 is not so large as in the conventional case where the water outlet of the waterway is located above the maximum specified water level, and the head of the pump may be large. Absent. Therefore, it is possible to effectively capture lint, dust and the like without reducing the amount of circulating water.

Further, in this case, the water outlet 26 of the first water channel 21 is vertically long which is long in the vertical direction, so that even if the water level is lower than the maximum specified water level H, the water level is further changed to a longer range. Accordingly, the above-described operation and effect can be obtained almost unchanged.

The filter 34 has a filter net 36, which is a bag of nets, so that lint, dirt and the like can be captured in a large area, and the storage of these can be increased. Further, the filter 34 is detachable from the filter mounting portion 29, so that the captured and stored thread waste,
Since cleaning for removing dust and the like, that is, regeneration of the trapping performance of the filter 34 can be easily and desirably performed with the filter 34 removed, it is possible to capture lint, dust and the like more effectively.

In addition, in this case, the filter 34 has a projection 37 as an engaging portion and a hook 39, while the filter mounting portion 29 moves the filter 34 up and down in the above-described manner. A projection 30 as an engagement receiving portion for engaging the projection 37 and a projection 31 as a hook receiving portion for engaging the hook portion 39 are provided. The filter 34 can be removed by operating the hook portion 29 with a finger to release the engagement with the protrusion 31, so that the filter 34 can be attached and detached. Up and down movement can be mainly facilitated.

The filter 34 has a chamfered portion 38 at the back of the lower end. When the filter 34 is mounted, the filter 34 allows the filter 34 to enter a deeper position. The projection 37 can be surely made to face the innermost side of the projection 30 at the lowermost part of the filter mounting portion 29, and the filter 34 can be mounted smoothly. Therefore, the filter 34 can be mounted more easily.

Further, the filter mounting portion 29 has an obtuse inclined surface portion 33 at the upper portion, so that when the filter 34 is removed, the filter frame 35 is moved along the inclined surface portion 33 into the inner tank 15. By being guided to the side, the filter 34 can be removed smoothly. Further, in this case, even if the user inserts a finger below the inclined surface portion 33 and removes the filter frame 35 by mistake, the user's finger hits the obtuse inclined surface portion 33 and the right angle Or, since it is not a sharp corner, the user can be prevented from feeling painful.

FIGS. 7 to 16 show the second to fourth embodiments of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals. Are omitted, and only different parts will be described. [Second Embodiment] In the second embodiment shown in FIGS. 7 to 9, the lower end of the hook portion 51 is replaced by a curved elastic portion 52 on the upper surface of the filter frame 35 instead of the hook portion 39 described above. The hook portion 51 is formed continuously.

The hook 51 is formed at its upper end with a finger hook 53 projecting inward of the inner tub 15 and with a projection 54 on the opposite side. Are formed with claw-shaped protrusions 55. And the filter mounting part 2
A recess 56 is formed as a hook receiving portion in the back portion of the hook 9, and the projection 55 of the hook 51 is elastically engaged with the recess 56.

According to this embodiment, as shown in FIG. 9, the user mounts the filter 34 in the mounting state of the filter 34 in which the projection 55 of the hook 51 is elastically engaged with the recess 56 of the filter mounting section 29 described above. With the finger of the hand H, the finger hook 53 of the hook portion 51 is held between the upper end of the waterway cover 23 and the finger hook 53 is pulled up. Then, the hook part 51 becomes the protrusion 5
4 is brought into contact with the inner wall surface 29 a of the filter mounting portion 29, and is elastically deformed from the elastic portion 52 by using this as a fulcrum.
5 is disengaged from the concave portion 56 of the filter mounting portion 29, and their engagement is released.

Thus, the engagement of the filter 34 with the concave portion 56, ie, the hook receiving portion, can be released with a small operation force, and the filter 34 can be easily removed.

[Third Embodiment] In the third embodiment shown in FIGS. 10 to 13, the filter mounting portion 29 is provided with a filter 34 for moving the filter 34 remaining above the filter 34 when the filter 34 is mounted. A cover 61 that covers the space 43 is provided. Specifically, the cover 61 is formed by connecting a thin-walled elastic portion 62 from a front edge of an inner upper portion of the filter mounting portion 29, and other peripheral portions of the cover 61 are separated from the filter mounting portion 29. ing.

In this case, a finger hook 64 is formed on the filter 34 so as to extend from the upper surface of the filter frame 35 to the inside of the inner tank 15 by a curved elastic portion 63. The hook portion 5 is connected to the upper portion of the portion 64 by a curved elastic portion 65 to form a groove 66 and a claw-shaped protrusion 67 on the back side of the elastic portion 65.
A hook part 68 which is replaced with one is formed.

The lower edge of the cover 61 is engaged with the groove 66 of the hook 68. On the other hand, a hole 69 is formed as a hook receiving portion at the back of the filter mounting portion 29, and a projection 67 of the hook portion 68 is formed on the hole 69.
Are elastically engaged. Further, in this case, the filter mounting portion 29 has a reinforcing rib 70 formed on the back side around the hole 69, and a projecting portion 71 as a stopper for the cover 61 is formed above the reinforcing rib 70.

In this embodiment, the space 43 for moving the filter above the filter 34 is covered with the cover 61, so that the upper edge of the hook 68, For example, the upper front edge of the filter mounting portion 29 and the upper portions of the front side edges of the filter mounting portion 29,
The laundry can be prevented from being caught on the front edge of the space 43, and the damage to the laundry can be eliminated.

In this case, when removing the filter 34, as shown in FIG. 12, a finger is hooked on the finger hook 64 of the hook 68, and the finger 34 is pulled up. Then, the hook portion 68 is elastically deformed from the elastic portion 63, and the portion of the groove portion 66 is tilted to the rear side. Further, at this time, the cover 61 is also tilted to the rear side by being pushed by another finger. As a result, the finger hook portion 64 of the hook portion 68 and the portion of the groove portion 66 are sandwiched by two fingers. By pressing them as shown in FIG. The engagement is released.

Further, at this time, the pushed-in cover 61 hits the projection 71 and becomes an inclined surface portion corresponding to the above-mentioned inclined surface portion 33. Therefore, when the filter 34 is thereafter pulled upward, the hook portion 68 is inclined. The filter 34 can be smoothly removed by being guided inward of the inner tank 15 along the surface (the cover 61).
Also, in this case, even if the user's finger hits it, as described above, it is an obtuse inclined surface portion, not a right angle or an acute angle portion, so that it is possible to prevent the user from feeling painful.

[Fourth Embodiment] In a fourth embodiment shown in FIGS. 14 to 16, a filter frame 35 of a filter 34 is provided.
In the upper and lower portions, plate spring-like elastic portions 81 and 82 projecting outward from the inner tank 15 are provided, and the elastic portions 81 above the elastic portions 81 and 82 are provided.
A shaft portion 83 is provided on the upper surface of the tip portion of the elastic member 82, and a shaft portion 84 is provided on the lower surface of the tip portion of the lower elastic portion 82.

On the other hand, a hole 85 is formed in the upper portion of the filter mounting portion 29 in the upper portion, a hole 86 is formed in the upper plate portion in the lower portion, and a hole 87 is formed in the lower portion in the lower portion. At the same time, a hole 88 is formed in the lower plate portion at the back. In addition, a guide surface 89 for forming a finger, for example, having an arc shape is formed on the upper inside of the filter mounting portion 29.

In this configuration, the shaft 84 of the filter 34 is fitted into the hole 88 from the hole 87 of the filter mounting portion 29 by the elasticity of the elastic portion 82, and the shaft 83 is formed by the elasticity of the elastic portion 81 from the hole 85 to the hole 86. Is fitted. Thereby, the filter 34 is opposed to the water outlet 26 of the first water channel 21 and is rotatable around the shaft portions 84 and 83. In particular, the filter 34 is capable of rotating clockwise and clockwise generated by the pulsator 18 in the inner tank 15. It is mounted so as to be rotatable in the direction of counterclockwise water flow (see arrows X and Y in FIG. 14).

A plurality of concave portions 90 communicating with the filter mounting portion 29 are formed alternately with the convex portions 91 on the water channel cover 23 on the left and right sides of the filter mounting portion 29, respectively. I have.

As a result, the filter 34 is connected to the inner tank 15.
The pulsator 18 is rotated by the water flow generated by the pulsator 18, and the rotation causes the inlet portion 36a of the filter net 36 to face the water flow in the inner tank 15 while facing the water discharge port 26 (FIG. This shows a state where the filter 34 is rotated by the water flow in the clockwise direction X, and the filter 34 rotates in the opposite direction to the water flow in the counterclockwise direction Y). Therefore, the filter 34 allows the water in the inner tank 15 circulated through the first water passage 21 to pass therethrough, and also allows the water flow in the inner tank 15 generated by the pulsator 18 to pass therethrough. , And their capture can be performed more effectively.

In this case as well, since the water outlet 26 of the first water channel 21 is located below the position of the maximum specified water level H in the inner tub 15, when washing at a water level lower than the maximum specified water level, The distance from the water surface to the water outlet 26 of the first water channel 21 does not increase, and the head of the pump does not increase. In addition, the water outlet 26 of the first water channel 21 is vertically long which is long in the up-down direction, so that even in the water level lower than the maximum specified water level H, it is possible to further cope with the difference in the water level in a longer range. The function and effect can be obtained almost unchanged. Further, the filter 34 has a filter net 36, which is a bag of nets, which allows for lint,
Garbage can be captured in a large area, and more can be stored.

In this case, as shown in FIG.
When the user presses down the elastic portion 81 with a finger placed on the filter 34 along the guide surface 89 of the filter mounting portion 29, the elastic portion 81 is elastically deformed and the shaft portion 83 is separated from the hole 86. Thereafter, the filter 34 is pulled inward of the inner tank 15 to disengage the shaft portion 83 from the hole 85.
The filter 34 can be removed by sequentially removing the lower shaft portion 84 from the holes 88 and 87. Since the filter 34 is detachable as described above, cleaning for removing the trapped and stored lint, dust, and the like, that is, regeneration of the capture performance of the filter 34 can be easily and desirably performed with the filter 34 removed. .

Although the first to fourth embodiments of the present invention have been described above, the present invention is not limited to them. For example, the washing machine as a whole is not limited to a washing machine for both dehydration and washing, and has only a washing function. May be included. Further, the second water channel 22 may not be provided. Further, the chamfer 3
8 may have a curved surface instead of an inclined surface. In particular, in the case of the structure of the fourth embodiment, the water outlet 26 of the first water channel 21 may not be vertically long.

[0059]

The present invention is as described above.
The following effects are obtained. According to the washing machine of claim 1, when washing is performed at a water level lower than the maximum specified water level, the head of the pump does not increase and the amount of circulating water does not decrease. Capture can be performed effectively. Also, even among water levels lower than the maximum specified water level, it is possible to respond to the difference in the water level in a longer range,
The above operation and effect can be obtained almost unchanged. Further, the filter net bag can capture lint, dirt, and the like in a large area, and can increase the storage thereof. In addition, by removing the filter, cleaning to remove captured lint, debris, etc., that is, regenerating the capture performance of the filter can be performed easily and as desired with the filter removed. Can be more effectively captured.

According to the washing machine of the second aspect, the attachment and detachment of the filter can be facilitated mainly by the vertical movement of the filter. According to the washing machine of the third aspect, when the filter is mounted, the filter can be made to enter the back by the chamfered portion, so that the filter can be mounted smoothly and the filter can be mounted more easily.

According to the fourth aspect of the present invention, when the filter is removed, the filter is guided inward of the inner tub, so that the filter can be removed smoothly. Also, in this case, even if the user makes a wrong removal, it is possible to prevent the user from feeling painful.

According to the fifth aspect of the washing machine, the filter
Since the engagement with the hook receiving portion can be released with a small operation force, the filter can be easily removed. According to the washing machine of claim 6, during washing or when taking out laundry,
The laundry can be prevented from being caught on the front edge of the filter moving space of the filter mounting portion, and the laundry can be prevented from being damaged.

According to the washing machine of the seventh aspect, the same effect as that of the washing machine of the first aspect can be obtained except that the difference in the water level can be dealt with in a longer range even if the water level is lower than the maximum specified water level. In addition, in this case, the filter can effectively capture lint, garbage, and the like not only from the circulating water but also from the water flow in the washing tub, so that the capture can be performed more effectively. it can.

[Brief description of the drawings]

FIG. 1 is an overall longitudinal side view showing a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part.

FIG. 3 is an enlarged vertical sectional side view of a main part.

FIG. 4 is an enlarged vertical sectional side view showing a filter mounting procedure of a main part.

FIG. 5 is an enlarged vertical sectional side view of a state in which a main part of the filter is being removed.

FIG. 6 is an enlarged vertical sectional side view of a state in which a filter of a different main part is being removed.

FIG. 7 is a view corresponding to FIG. 2, showing a second embodiment of the present invention;

FIG. 8 is a diagram corresponding to FIG. 3;

FIG. 9 is a diagram corresponding to FIG. 5;

FIG. 10 is a view corresponding to FIG. 2, showing a third embodiment of the present invention;

FIG. 11 is a diagram corresponding to FIG. 3;

FIG. 12 is a diagram corresponding to FIG. 5;

FIG. 13 is an enlarged vertical sectional side view of a state where a filter is removed from a main part.

FIG. 14 is a view corresponding to FIG. 2, showing a fourth embodiment of the present invention;

FIG. 15 is a diagram corresponding to FIG. 3;

FIG. 16 is a diagram corresponding to FIG. 5;

[Explanation of symbols]

15 is an inner tub (washing tub), 18 is a pulsator, 20 is a pump blade, 21 is a first channel (water channel), 26 is a water outlet,
9 is a filter mounting portion, 30 is a projection (engagement receiving portion), 31 is a projection (hook receiving portion), 33 is an inclined surface portion, 34 is a filter, 35 is a filter frame, and 36 is a filter net (net bag). , 37 are protrusions (engaging portions), 38 is chamfered portions, 3
9, 51 are hook portions, 52 is an elastic portion, 53 is a finger hook portion,
54 is a projection, 56 is a concave portion (hook receiving portion), 61 is a cover, 68 is a hook portion, 69 is a hole (hook receiving portion), 83,
84 indicates a shaft portion, H indicates the highest specified water level, and X and Y indicate directions of water flow generated by the pulsator.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiroshi Nishimura 991 Anata-cho, Seto-shi, Aichi Prefecture Inside the Ashi Factory, Toshiba Corporation (72) Inventor Masato Shinichi 991, Anata-cho, Seto-shi, Aichi Prefecture Aichi Factory, Higashishiba Corporation (72) Inventor Mune Tozaki 991, Anata-cho, Seto-shi, Aichi F-term in the Ashi Factory, Toshiba Corporation (reference) MA01 MA02

Claims (7)

[Claims] 1. A washing tub, a pulsator provided on the inner bottom of the washing tub, a pump blade provided on the back side of the pulsator, and water in the washing tub which is pumped by the rotation of the pulsator. The washing tub is provided so as to pass through, and a spout for discharging the water that has passed through the washing tub is positioned vertically below the highest specified water level position in the washing tub, and has a vertically elongated shape.
A water channel having a filter mounting portion around the water outlet; a net which is detachably mounted on the filter mounting portion of the water channel so as to face the water outlet, and catches lint, dust, etc. from water discharged from the water outlet. And a filter having a bag. 2. A filter having an engaging portion and a hook portion, wherein the filter attaching portion includes an engaging receiving portion for engaging the engaging portion by moving the filter in a vertical direction, and the hook portion. A hook receiving portion to be engaged, the filter is attached to the filter mounting portion by the engagement thereof, and the filter is removable by operating the hook portion with a finger to release the engagement with the hook receiving portion. The washing machine according to claim 1, wherein: 3. The washing machine according to claim 2, wherein the filter has a chamfered portion at the back of the lower end. 4. The washing machine according to claim 2, wherein the filter mounting portion has an obtuse inclined surface portion at an upper portion. 5. A hook portion is provided on the filter so as to be elastically deformable. The hook portion has a finger hook protruding inward of the washing tub when the filter is mounted, and the filter mounting portion is provided on the opposite side when the filter is removed. The washing machine according to claim 2, further comprising a protrusion abutting on a wall surface of the part. 6. The washing machine according to claim 2, wherein the filter mounting portion has a space for moving the filter above the filter when the filter is mounted, and has a cover covering the space. 7. A washing tub, a pulsator provided on the inner bottom of the washing tub, a pump blade provided on the back side of the pulsator, and water in the washing tub pumped by the rotation of the pulsator. A water outlet provided in the washing tub so as to let the water pass therethrough and positioned below a maximum specified water level position in the washing tub, and having a filter mounting portion around the water outlet. A water channel, a filter mounting portion of the water channel, which is detachably attached to the water discharge port so as to face the water discharge port, and is mounted so as to be rotated by a water flow in a washing tub generated by the pulsator, and the rotation causes the inlet portion to be rotated. A washing machine comprising: a filter having a net bag that faces a water flow in a washing tub while facing a water outlet.