TWI661098B - Filter device for washing machine and washing machine equipped with the same - Google Patents

Abstract

An object of the present invention is to provide a filter device for a washing machine, which can easily and cleanly discard garbage such as collected thread shavings.

The solution is to include a housing, an introduction opening (41) for introducing washing water, and a filter section for returning the washing water introduced from the introduction opening (41) to the washing tub. The housing includes a surface plate (30) having a filter portion (33), and an inner panel (40) disposed opposite to the surface plate (30) and releasably attachable to the surface plate (30). The surface plate (30) is provided with a scraping part (35) for scraping the wire scraps (D) attached to the inner panel (40).

Description

Filter device for washing machine and washing machine equipped with the same

The present invention relates to a filtering device for a washing machine that filters garbage such as swarf contained in washing water, and a washing machine equipped with the filtering device.

The swarf trapping device (filtering device) is a box-shaped resin case, and is installed on the inner side of the laundry and dehydration layer. The swarf collected by the swarf collection device may become unsanitary due to the kind of dirt or the storage time. Therefore, a swarf collection device capable of discarding the swarf without touching the hands is proposed. For example, the trapping device described in Patent Document 1 slides the scraping part provided on the rear cover (inner panel) while pushing against the inner surface of the front cover (surface panel), and does not need to be attached to the front cover with a finger. Structure that can remove thread shavings.

[Prior technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2013-141552

However, since the spin-drying operation is basically performed during washing, the centrifugal force acts on the inner panel side of the wire scrap collection device, and the wire scraps collected during washing are pushed toward the inner panel side. In such a case, the wire scrap collection device described in Patent Document 1 has a structure for scraping the surface plate. Therefore, in order to remove the wire scraps pushed to the inner panel, it is necessary to manually pick up the wire scraps and discard them.

Therefore, an object of the present invention is to provide a filter device for a washing machine and a washing machine equipped with the filter device, which can easily and cleanly discard garbage such as collected thread shavings.

In the present invention, a housing is provided with an introduction opening for introducing washing water, and a filter unit for returning the washing water introduced from the introduction opening to a washing tub is provided. The housing is provided with: A surface plate; an inner panel which is disposed opposite to the surface plate and can be releasably mounted on the surface plate; and a plurality of wire chip backflow prevention ribs formed on the inner surface of the filter portion; The scraping part of the foreign material of the said inner panel is characterized.

According to the present invention, it is possible to provide a filter device for a washing machine that can simply and cleanly collect garbage such as line scraps and a washing machine equipped with the filter device.

Next, an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. The washing machine according to the embodiment of the present invention is equipped with a filter device for a washing machine, which will be described later. Hereinafter, the overall configuration of the washing machine will be described, and then the filter device for a washing machine according to this embodiment will be described in detail.

FIG. 1 is a diagram illustrating the configuration of a washing machine (washing and drying machine) according to an embodiment of the present invention. As shown in FIG. 1, the washer-dryer 1 (washing machine) is a vertical washer (vertical washer-dryer) in which the rotation axis of the washer-dehydration tank 8 (inner tank) is substantially vertical. An upper cover 2a is provided on the upper part of the frame 2 of the washing and drying machine 1, and an outer cover 3 is provided on the upper cover 2a. The outer cover 3 is opened to the rear side so that the opening portion 2b is opened, so that clothes (laundry) and the like can be taken in the laundry / dehydration tank 8. On the deep side (rear side) of the upper cover 2a, a water supply pipe connection 4 from a tap tap and a suction pipe connection (not shown) for sucking excess hot water from the bath tub are provided.

The washer-dryer 1 is provided in the housing 2 with a washer-dehydration tank 8, an outer tank 9, a driving device 10, a lotion and finishing agent input device 11, a water supply unit 7, a drying pipe 12, and the like.

The washing and dewatering tank 8 has a bottomed cylindrical shape and includes a carcass plate 8a formed of a stainless steel plate or the like. The carcass plate 8a is formed with a plurality of through holes 8a1 (only a part of which is shown) for water and ventilation. The washing and dewatering tank 8 includes a rotary blade 8b on the inner bottom surface.

The outer tank 9 has a bottomed cylindrical shape, and the washing and dewatering tank 8 is enclosed in a coaxial manner, and an outer tank cover 9a is provided at an upper portion thereof. The user of the washer-dryer 1 opens the cover member 9c of the outer cover 3 and the outer tank cover 9a, and can take in and out laundry from the opening 2b into the washing and dewatering tank 8.

The driving device 10 is arranged at the outer center of the bottom surface of the outer groove 9. The driving device 10 includes a motor 10a and a clutch mechanism 10b. A rotating shaft 10c of the driving device 10 passes through the outer tank 9 and is composed of a washing and dewatering tank 8 and a rotating wing 8b. The clutch mechanism 10b has a function of transmitting the rotational power of the motor 10a to at least one of the washing and dewatering tank 8 and the rotary blade 8b. The motor 10a includes a rotation detection device 5 configured to detect a rotation of a Hall element, a photointerrupter, and the like, and a motor current detection device 6 to detect a current flowing through the motor 10a.

The input device 11 is located on the front side of the upper cover 2a. The lotion or finishing agent is fed between the outer tub 9 and the washing and dewatering tub 8 together with the tap tube 11a together with the tap water.

The water supply unit 7 is provided on the deep side of the upper surface cover 2a. This water supply unit 7 supplies tap water from the water supply pipe connection 4 to the input device 11 and a water-cooled dehumidification mechanism (not shown). In addition, the water supply unit 7 may inject tap water from the water supply pipe connection 4 or bath water from the suction pipe connection through the water injection pipe 11b, and inject water into the outer tank 9 from between the outer tank 9 and the washing and dewatering tank 8. In addition, the water supply unit 7 can inject tap water from the water supply pipe connection 4 to the upper part of the washing and dewatering tank 8 through the washing pipe 11c.

The falling part 9m provided on the bottom surface of the outer tank 9 is connected to the washing water drainage path 15 through the drainage valve 14 and communicates with it. A drain pipe (not shown) for draining water out of the machine is connected to the washing water drainage path 15. Incidentally, by closing the drain valve 14 to close the valve, it is possible to store washing water or washing water in the outer tank 9. By opening the drain valve 14, the water (washing water, washing water) in the outer tank 9 can be discharged to the outside of the washing and drying machine 1 through the washing water drainage path 15.

The drying pipe 12 is installed longitudinally on the inner side of the back of the frame 2 and the lower part of the pipe is a 9m of the outer groove 9 connected to a rubber bellows 12a. The drying pipe 12 has a water-cooled dehumidification mechanism (not shown) and a water supply unit 7 Supply cooling water (tap water) to this water-cooled dehumidifier. The cooling water is transmitted to the wall surface of the drying pipe 12 and then flows down into the falling part 9m, and is discharged to the outside through the washing water drainage path 15.

The outlet of the drying tube 12 is connected to the air inlet of the fan 13, and the outlet of the fan 13 is connected to the heater 16. The outlet of the heater 16 is connected to the blow-out nozzle 18 through the blower pipe 17 and the rubber bellows 17a. That is, when the fan 13 is driven, the air in the outer tank 9 flows into the drying pipe 12 through the falling part 9m. Then, the air cooled and dehumidified by the drying tube 12 is expelled from the fan 13 and then heated by the heater 16, and then a high-temperature and low-humidity air is blown from the blowing nozzle 18 toward the laundry and dehydration tank 8.

The washing and dewatering tank 8 is provided with a balance ring (also referred to as a fluid balancer) 8c formed of a synthetic resin or the like at an upper end edge portion of the carcass plate 8a. This balance ring 8c is composed of a fluid with a large specific gravity enclosed therein. When the eccentricity is caused by the misalignment of the laundry during the rotation of the washing and dewatering tank 8, the eccentricity is offset by the fluid movement in the balance ring 8c. To maintain the balance of rotation.

The outer tank cover 9 a has a substantially semicircular input port, and is attached to an upper end edge portion of the outer tank 9. In addition, a cover member 9c that can be opened and closed is provided at the input port. A water channel member (not shown) for cleaning the groove is fixed to the lower surface of the outer groove cover 9a by a plurality of screws in the outer groove cover 9a. This water path member is formed in a substantially ring shape, and is arranged so as to surround the peripheral portion of the outer tank cover 9a.

The washer-dryer 1 according to the present embodiment includes two sets of filter devices F for washing machines (hereinafter, simply referred to as "filter devices F"). The filter devices F and F are mounted on the inner peripheral surface of the washing and dewatering tank 8 so as to face each other. In more detail, the filter device F is attached to the inner peripheral surface of the washing and dewatering tank 8 through the filter device housing case 50.

Although the filter device housing case 50 and the filter device F of the present embodiment are formed of resin, they are not limited to these as long as predetermined mechanical strength and processability are obtained, and may be formed of other materials such as metal.

Fig. 2 is a front view showing a filter device for a washing machine attached to a filter device housing case. As shown in FIG. 2, the front surface of the filter device housing case 50 extending in the up-down direction (depth direction) of the washing and dewatering tank 8 is shown as a rectangular plate-shaped body. In addition, the laundry and dewatering tank 8 is a "washing tank" equivalent to what is called a patent application range.

This filter device housing case 50 covers the inner peripheral surface of the washing and dewatering tank 8 with a predetermined width B, and leaves a gap 54 through which washing water can flow between the inner peripheral surface of the washing and dewatering tank 8 (see section Figure 3). Further, the filter device F is disposed near the center of the filter device housing case 50 in a predetermined width B direction (direction around the washing and dewatering tank 8).

The washing and dewatering tank 8 includes a bottom plate 8d on the bottom side of a carcass plate 8a (see FIG. 1) having an inner tube shape. The bottom plate 8d is formed of a synthetic resin material and has a cross-sectional shape that is bent upward on the peripheral side. The bottom plate 8d includes a disc-shaped bottom portion 8e and a side portion 8f standing upward from the peripheral edge portion of the bottom portion 8e, and is fixed to the lower end portion of the carcass plate 8a. The inner wall portion 8g reaching the boundary of the side portion 8f from the bottom portion 8e has an R shape (curved shape). In addition, a plurality of water suction ports 8h are formed in the bottom plate 8d to communicate with the outer groove 9 (see Fig. 1).

Further, a freely rotating rotary wing 8b is provided on the bottom of the washing and dewatering tank 8 and the inner peripheral side of the bottom plate 8d (see FIG. 1). This rotating wing 8b has a large diameter covering a large part of the bottom plate 8d, is bent upward, and pushes the peripheral portion upward to form a disc shape, and is configured to rotate while supporting the laundry.

Fig. 3 is a perspective view showing a filter device housing case and a filter device for a washing machine detached from the filter device housing case. For example, as shown in FIG. 3, the filter device housing case 50 is formed with a recessed portion 51 in a shape to accommodate the filter device F in a portion where the filter device F is assembled. The depth of the recessed portion 51 is set in accordance with the thickness of the filter device F. Thereby, the front surface of the filter device F accommodated in this recessed portion 51 becomes the same plane as the filter device housing case 50 around the recessed portion 51.

A housing-side opening 52 is formed in the recessed portion 51 so as to correspond to a washing water introduction opening 41 described later in the filtering device F accommodated in the recessed portion 51 (see FIG. 6).

This casing-side opening 52 communicates with the filter device housing casing 50 and a gap 54 formed between the filter device housing casing 50 and the inner peripheral surface of the washing and dewatering tank 8. The cross-sectional shape of the gap 54 is a thin crescent shape defined by a circular arc in the peripheral direction of the washing and dewatering tank 8 and a straight line on the rear surface of the filter device housing case 50. The gap 54 communicates with the washing water introduction port 55 at the lower end of the filter device housing case 50. The opening of this washing water introduction port 55 faces the center side of the washing and dewatering tank 8.

Further, a locking hole 53 is formed on the upper side in the recessed portion 51 to be fitted into a locking claw 32 to be described later, which is fitted into the filter device F, and locked. A lower side in the recessed portion 51 is formed at a position receiving the lower end of the filter device F, and an insertion hole 42 is formed in the insertion portion 38 which will be described later.

Next, the filtering device F will be described. In addition, the directions of up, down, left, right, front, and back in the following description of the filter device F are based on the front, back, left, right, and up and down directions in FIG. 3. That is, in a state where the filter device F is installed on the inner peripheral surface of the washing and dewatering tank 8, the front side shown from the radial center side of the washing and dewatering tank 8 is the front side of the filter device F and faces the washing and dewatering tank. The left side in the peripheral direction of the dewatering tank 8 is the left side of the filtering device F, and the upper side of the washing and dewatering tank 8 is the upper side of the filtering device F.

The filter device F has a substantially rectangular parallelepiped shape with a thin vertical length, and the inside thereof is hollow. Further, the filter device F has a locking claw 32 in the center of the upper end, and a fitting portion 38 in the center of the lower end. In addition, in this embodiment, although the inserting portion 38 is provided at the lower end central portion of the filter device F, the position of the inserting portion 38 is not particularly limited.

The locking claws 32 are fitted into the locking holes 53 of the filter device housing case 50, thereby supporting the upper end of the filter device F to the filter device housing case 50. In addition, the locking claw 32 is formed by a curved plate body, and the plate body connected to the upper end of the filter device F extends toward the rear side and is formed by folding back toward the front side on the way, and is shown in a substantially U shape in cross section. The locking pawl 32 has spring elasticity, and the upper plate and the lower plate forming a U-shape can be displaced in a vertical direction by elastic thrust. A protrusion 32 a is formed on the upper surface of the upper plate of the locking claw 32. In addition, although not shown, when the filter device F is disposed in the recess 51 on the upper wall (top) of the locking hole 53 of the filter device housing case 50, a hole for receiving the protrusion 32a of the locking claw 32 is formed.

The fitting portion 38 is formed to protrude downward. Then, the insertion portion 38 is fitted into the insertion hole 42 formed in the filter device housing case 50, thereby supporting the lower end of the filter device F to the filter device housing case 50.

A filter portion 33 is formed on the front side of the filter device F so as to occupy at least the lower half of the vertical direction. In the upper part of the front side of the filtering device F where the filtering portion 33 is not formed, finger hook portions 31 are formed in the shape of depressions that are horizontally long in the left and right directions.

The filter portion 33 is formed by dividing a plurality of hole portions 33b by a substantially lattice-shaped frame portion 33a. The holes 33b communicate with the inside and outside of the hollow filter device F. A mesh-shaped filter material 33c (not shown in the figure) is arranged to block each of the hole portions 33b. Incidentally, the substantially lattice-shaped frame portion 33a of the filter portion 33 provided on the front side of the filter device F rubs against the laundry while agitating the laundry in the washing and dewatering tank 8 during washing, and exerts a so-called washer effect.

In addition, although the finger hook portion 31 of this embodiment is shown in the front of the filtering device F as a horizontally long rectangular shape, the shape is not particularly limited, and may be a horizontally long oval shape. Incidentally, when the finger hook portion 31 of this embodiment is set to detach the filter device F with respect to the filter device housing case 50, at least when the fingertip of the user's thumb is attached to the locking claw 32, at least Is the width and depth of the index finger insertion. The width of the finger hook portion 31 is preferably set to the extent that the two fingers of the index finger and the middle finger, and the other three fingers of the thumb and little finger can be inserted, but is not limited thereto.

In addition, in this embodiment, the case where the finger hook portion 31 is formed has been described as an example, but a protruding portion may be formed. For example, when the filter device F is disengaged from the filter device housing case 50, the protrusions are attached to the fingertips of the index finger when the fingertips of the user's thumb are attached to the locking claws 32, as long as The position and shape of the locking claw 32 and the protruding portion can be detached. Thereby, since the finger hook part 31 is unnecessary, the installation area of the filter part 33 can be enlarged. In addition, since the installation area of the filter portion 33 can be enlarged, the substantially lattice-shaped frame portion 33a can be enlarged, and the washing board effect can be further enhanced.

In addition, the position of the filter device F with respect to the filter device housing case 50 and the position P of the finger hook portion 31 of the filter device F are as shown in FIG. It is preferable that half of the depth D1 is further above. The distance D2 from the upper opening of the washing and dewatering tank 8 is preferably set to be within 20 cm. Incidentally, the position P of the finger hook portion 31 in this embodiment is defined by the center position of the vertical width of the finger hook portion 31. This allows the user to easily disengage the filter device F when operating at a capacity of approximately 60% of the capacity normally used, and to suppress the operation of the filter device F in a state of being buried in water.

Fig. 4 is a perspective view showing a state where the surface plate and the inner panel of the filter device for a washing machine are slid and separated. For example, as shown in FIG. 4, the filter device F includes a surface plate 30 disposed on the front side and an inner panel 40 disposed on the rear side. Moreover, this embodiment is a case where the surface plate 30 and the inner plate 40 constitute a patent application scope. That is, the surface plate 30 is a front half that forms the filter device F, and the inner panel 40 is a rear half that forms the filter device F. In addition, the inner panel 40 is formed so that the length in the up-down direction becomes about half of the length of the surface panel 30.

The surface plate 30 is formed with side plates 30 a and 30 b at both ends in the width direction (left-right direction) of the filter portion 33. The side plates 30 a and 30 b extend around the filter portion 33 and the finger hook portion 31 (see FIG. 3) and extend to the lower end of the locking claw 32. In addition, the side surface portions 30a1, 30b1 which are higher than the center in the vertical direction of the side plates 30a, 30b are formed to be thicker than the side surfaces 30a2, 30b2 which are lower in the center in the vertical direction, and extend rearward. Further, in the side surface portion 30a1, a recess 39 for hooking a finger is formed on the side of the finger hook portion 31 (see FIG. 3). In addition, in FIG. 4, although only the recessed part 39 on the right side is shown, the same recessed part is also formed on the left side.

A linear guide 36 is formed on the outer surface of the side surface portion 30a2 along the vertical direction. The side wall surface 36a on the front side of the guide rail 36 is formed as a whole from the upper end to the lower end. The rear side wall surface 36b of the guide rail 36 is formed from the upper end to the substantially center in the vertical direction. A rib 36 c is formed near the upper portion of the guide rail 36 so as to stand from the bottom surface of the guide rail 36. A guide rail having the same shape as the side plate 30a is also formed on the side plate 30b.

The rib 36c functions as a stopper of the sliding inner panel 40 and is formed in a mountain shape. The convex portion 43 of the inner surface portion 40 passes over the rib 36 c to thereby realize the function of a brake, thereby forming a structure in which the inner surface plate 40 is unintentionally detached from the surface plate 30.

A plurality of swarf backflow prevention ribs 37 are formed on the inner surface of the filter portion 33. The swarf backflow prevention rib 37 in this embodiment is formed so as to stand upright from the filter portion 33 opposed to the inner panel 40. In addition, the swarf backflow prevention rib 37 is formed in a cylindrical shape and is formed in the frame body 33a.

The large-diameter (large-diameter) chip backflow prevention ribs 37a (37) are located in the center of the four hole portions 33b. In addition, the swarf backflow prevention ribs 37a are formed at two places spaced apart in the left-right direction (width direction). In addition, the swarf backflow prevention rib 37b (37) with a small diameter (small diameter) is a frame portion 33a positioned between the upper and lower hole portions 33b. The swarf backflow preventing rib 37b is formed on the outer side in the left-right direction than the swarf backflow preventing rib 37a.

A plate-shaped scraping portion 35 is formed at the lower end of the surface plate 30. This scraping part 35 is integrally formed with the surface plate 30 and the side plates 30a, 30b. In addition, the scraping part 35 is connected to the lower end of the filter part 33, the right end is connected to the lower end of the side plate 30a, and the left end is connected to the lower end of the side plate 30b. Thereby, a space surrounded by the filter part 33, the side plates 30a, 30b, and the scraping part 35 is formed. The rear end of the scraping part 35 is formed in the same plane as the rear ends of the side plates 30a and 30b, and is formed in a linear shape in the left-right direction (width direction).

The inner panel 40 includes a rear plate 40 a disposed opposite to the filter portion 33, and side plates 40 b and 40 c standing upright at both left and right ends of the rear plate 40 a toward the surface plate 30 side. An insertion portion 38 is integrally formed at the lower end of the rear plate 40a.

On the inner surface of the rear plate 40a, two reinforcing ribs 44 extending in parallel in the vertical direction are formed. On the outer sides of the lower ends of the side plates 40b and 40c, recessed portions 45 and 45 for hooking fingers are formed.

As described above, the filter device F can detach the surface plate 30 and the inner panel 40 by sliding the surface plate 30 and the inner panel 40 in the up-down direction and opposite directions. Then, the surface plate 30 and the inner plate 40 are combined so that the outer surfaces of the side portions 30a1 and 30b1 and the outer surfaces of the side plates 40b and 40c become the same plane (see FIG. 3).

Fig. 5 is a perspective view when the inner panel of the filter device for a washing machine is shown from the inner side. As shown in FIG. 5, a plurality of convex portions 43 are formed on the inner wall surface of the side plate 40 b of the inner panel 40 at regular intervals in the vertical direction. The convex portion 43 at the upper end is formed by protruding from the inner wall surface of the upper end of the side plate 40b. In addition, a convex portion is also formed in the side plate 40c.

The convex portion 43 has a rectangular parallelepiped shape or a cubic shape, and is slidably inserted into a guide rail 36 (see FIG. 4) formed on the side plate 30 a of the surface plate 30. Thereby, the inner panel 40 can slide to the up-down direction (long direction) with respect to the surface plate 30.

The rear plate 40a is formed in a rectangular shape and is formed substantially flat as a whole. In addition, the inner panel 40 opens the left and right sides of the fitting portion 38 of the rear panel 40 a downward.

In addition, in the present embodiment, the plurality of convex portions 43 are inserted into the guide rail 36 (see FIG. 4), so that the surface plate 30 and the inner panel 40 can be slid, but a plurality of convex portions 43 may be formed by one convex strip.

Fig. 6 is a sectional view taken along line VI-VI of the filter device for a washing machine of Fig. 3. In FIG. 6, hatching of the cross-sectional view is omitted (the same applies to the cross-sectional views after FIG. 7). For example, as shown in FIG. 6, the surface plate 30 and the inner surface plate 40 are formed as hollow portions Q by mating with each other. The surface plate 30 is formed with the above-mentioned finger hook portion 31, the locking claw 32, and the filter portion 33. The back surface (inner surface, rear surface) 31s of the finger hook portion 31 is configured to be positioned on substantially the same plane as the rear surface of the inner panel 40.

An introduction opening 41 for introducing washing water is formed between the lower end of the back surface 31s of the surface plate 30 and the upper end 40s of the inner panel 40. This introduction opening 41 is formed at a position corresponding to the housing-side opening 52 (see FIG. 3) when the filter device F is housed in the filter device housing case 50 (see FIG. 3). The introduction opening 41 communicates with the inside and outside of the hollow filter device F. The introduction opening 41 in the present embodiment is formed at a substantially center in the up-down direction on the inner surface of the filter device F of the wire scrap collection device.

The swarf backflow preventing rib 37 is formed to stand vertically from the inner surface (rear surface) of the filter portion 33 opposed to the inner panel 40. Specifically, the swarf backflow prevention rib 37 is formed in a flow path in which the wash water introduced into the filtering device F through the introduction opening 41 flows out of the filtering unit 33 through the filtering device F. The swarf backflow prevention rib 37 as described above has a function of blocking the swarf (foreign matter) flowing into the hollow portion Q of the filtering device F from the introduction opening 41 to flow back to the introduction opening 41 again.

The above-mentioned swarf backflow prevention rib 37 also has the effect of being a reinforcing rib that prevents the surface plate 30 of the filter device F from being bent during centrifugal force when the clothing is moved outward by centrifugal force during the washing operation. Specifically, when a force is applied to the surface plate 30 by clothing, the front end of the wire backflow preventing rib 37 abuts against the inner panel 40, thereby supporting the support plate from further bending. In addition, the swarf backflow prevention rib 37 also has the effect of suppressing deformation of the filter portion 33 due to heat generated during the drying operation.

The filter device F is formed by surrounding the filter portion 33 and the side plates 30 a and 30 b (see FIG. 4) of the surface plate 30 and the rear plate 40 a and the side plates 40 b and 40 c (see FIG. 4) of the inner plate 40. In addition, the filter portion 33 forming the front surface of the hollow portion Q is lower than the thread backflow prevention rib 37, and the hollow portion Q is gradually narrowed.

The finger hook portion 31 is shown in a cross section, and includes a top surface 31 a on which a finger belly is hooked, and a bottom surface 31 b extending downward from a rear end of the top surface 31 a. A guide plate 34 is formed between the lower end of the bottom surface 31b and the upper end of the filter portion 33 and is inclined downward toward the front (front side) side. The inner surface of this guide plate 34 has an inclined surface 34s parallel to the surface. In other words, the rear end portion 34 a of the guide plate 34 is positioned higher than the front end portion 34 b, and the front end portion 34 b of the guide plate 34 is connected to the upper end of the filter portion 33.

The guide plate 34 in the present embodiment is erected on the inner wall of the surface plate 30 so as to abut directly above the introduction opening 41. Specifically, it extends from directly above the introduction opening 41 toward the upper end of the filter portion 33. Incidentally, the upper edge of the introduction opening 41 in this embodiment is positioned above the filter portion 33. Therefore, the guide plate 34 is inclined downwardly from the inside of the surface plate 30. Like the guide plate 34 described above, the washing water introduced into the inside of the filtering device F from the introduction opening 41 is induced to flow toward the filtering portion 33.

Next, functions and effects of the filtering device F and the washing and drying machine 1 provided with the filtering device according to the embodiment of the present invention will be described. When the user attaches the filter device F to the washer-dryer 1 (see Fig. 1), the user holds the filter device F shown in Fig. 3. For example, a user inserts his forefinger into the finger hook portion 31 and attaches the upper part of the thumb claw 32 to the upper surface of the locking claw 32 to hold the filter device F. Next, the user, while holding the filter device F, inserts the insertion portion 38 into the insertion hole 42 of the filter device housing case 50, and then inserts the locking claw 32 into the locking hole 53 of the filter device housing case 50. Thereby, the filter device F is housed and supported in the filter device housing case 50. The gap 54 (see FIG. 3) formed between the filter device housing case 50 and the inner peripheral surface of the washing and dewatering tank 8 is transmitted through the housing-side opening 52 and the introduction opening 41 (see FIG. 6) and the filter. The inside of the device F (the hollow portion Q, see Fig. 4) communicates.

Fig. 7 is a side cross-sectional view showing the flow of washing water in a filter device for a washing machine assembled in a filter device housing case. Fig. 8 is a partially enlarged side cross-sectional view showing an enlarged vicinity of a guide plate of a filter device for a washing machine.

When the washing and drying machine 1 (see FIG. 1) of this embodiment puts washing water in the outer tub 9 (see FIG. 1) and performs laundry washing in the washing and dewatering tank 8 (see FIG. 1), The rotary blade 8b (see FIG. 1) agitates the washing water in the washing and dewatering tank 8.

As shown in FIG. 7, by the fan of the rotating wing 8b (see FIG. 1) during washing, washing water including garbage (foreign matter) such as thread shavings passes through the lower end of the filter device housing case 50 (see FIG. 3). The washing water introduction port 55 (see FIG. 3) is introduced into a gap 54 (see FIG. 3) between the filter device housing case 50 and the inner peripheral surface of the washing and dewatering tank 8.

In addition, as the washing water W such as swarf moves upward in the gap 54, the filter-side housing opening 50 and the introduction opening 41 of the filter device F are introduced into the filter device F through the filter device housing housing 50, and then are removed from the filter unit 33. Send it out of the filtering device F. Further, a guide side 56 is formed in the housing-side opening 52 of the filter device housing case 50 at a height position opposite to the introduction opening 41 to guide the washing water W to the introduction opening 41.

At this time, as shown in FIG. 8, the washing water W is smoothly changed in direction from the introduction opening 41 to the filter 33 by the guide plate 34. Therefore, the washing water W introduced into the filtering device F can be efficiently sent from the filtering unit 33 to the outside of the filtering device F. According to the filtering device F of this embodiment, the filtering unit 33 can efficiently collect garbage such as swarf contained in the washing water W.

Next, a description will be given of a procedure for discarding garbage such as thread shavings collected by the filtering device F. After the washing is completed, the user removes the filter device F from the filter device housing case 50. At this time, the user performs the reverse steps of mounting the filter device F to the filter device housing case 50 described above. Specifically, for example, the user inserts his forefinger into the finger hook portion 31 and attaches the abdomen of the thumb to the upper surface of the locking claw 32. Then, the upper surface of the locking claw 32 is depressed with the thumb to release the locking with respect to the locking claw 32 of the locking hole 53, and the filter device F held by the thumb and the index finger is pulled out from the insertion hole 42. The filter device F is removed from the filter device housing case 50.

At this time, the position P (refer to FIG. 2) of the finger hook portion 31 is set to be higher than a half position of the depth D1 (refer to FIG. 2) of the washing and dewatering tank 8 (washing tank), or the finger hook portion 31 The position P is set to be within 20 cm from the opening of the washing and dewatering tank 8. Thereby, the user can easily remove the filter device F from the washing and dewatering tank 8.

When the surface plate 30 and the inner panel 40 of the filter device F are slid in opposite directions, as shown in FIG. 4, the surface plate 30 and the inner panel 40 are separated. That is, the convex portion 43 (refer to FIG. 5) located at the upper end (one end) of the inner panel 40 is passed over the rib 36 c formed on the guide rail 36 (refer to FIG. 4), thereby releasing the surface plate 30 from the inner panel 40. Engaged state (locked state). As described above, by forming the rib 36c, the inner panel 40 can be detached from the surface panel 30 with a simple structure.

Fig. 9 is a cross-sectional view showing a state in which a surface plate and an inner panel are slid by a filter device for a washing machine, and debris such as thread shavings is scraped off. Fig. 9 (a) is a state before the surface plate 30 and the inner panel 40 are slid, Fig. 9 (b) is a state where the surface plate 30 and the inner panel 40 are slid midway, and Fig. 9 (c) is a surface plate 30 and the inner panel 40 The separated state of the inner panel 40. As shown in FIG. 9 (a), the swarf D captured by the hollow part Q by the washing operation or the washing operation is pushed toward the inner panel 40 side by the centrifugal force of the dehydration operation of the washer dryer 1 (see FIG. 1) Gather).

Then, as shown in FIG. 9 (b), the user puts the surface plate 30 on the upper side with respect to the ground (a state in which the surface of the filter portion 33 faces upward). Then, the user sticks his / her finger on the recess 39 (see FIG. 4) of the surface plate 30 with one hand, and sticks his / her finger on the recess 45 (see FIG. 4) of the inner panel 40 with the other hand. ) Hold and slide the surface plate 30 and the inner plate 40 in opposite directions (up and down directions). Thereby, the scraps 35 of the wire scraps provided on the surface plate 30 can collect the wire scraps D collected in the inner panel 40 by sliding on the surface of the rear plate 40 a of the inner panel 40.

As shown in FIG. 9 (c), the surface plate 30 and the inner panel 40 are further slid from the state of FIG. 9 (b). Thereby, the convex portion 43 (see FIG. 5) of the inner panel 40 is pulled out from the guide rail 36 (see FIG. 4), so that the surface plate 30 is separated from the inner panel 40. When the front panel 30 is separated from the inner panel 40 (when the sliding operation is completed), the wire scraps D collected from the rear panel 40a fall to the lower side due to their own weight. Thereby, the user can discard without directly contacting the garbage such as thread shavings filtered from the washing water W.

After removing the garbage from the filter portion 33 and then mating the surface plate 30 with the inner surface plate 40 again, by sliding the convex portion 43 of the inner surface plate 40 along the guide rail 36 (see FIG. 4) of the surface plate 30, The state where the surface plate 30 and the inner panel 40 are tightly closed and maintained is maintained. At this time, the guide rail 36 forms the side wall surface 36b (see FIG. 4) shorter than the side wall surface 36a (see FIG. 4), and cuts off the guide rail 36 in the middle. Thereby, when the surface plate 30 and the inner panel 40 are combined, it is easy to insert the front end (upper end) convex portion 43 into the guide rail 36. In addition, the guide rail 36 has a curved shape in which the lower end of the side wall surface 36 b is expanded outward, and the convex portion 43 can be more easily inserted into the guide rail 36.

As described above, the filter device F of this embodiment is provided with the introduction opening 41 into which the washing water W is introduced, and is formed to return the washing water W introduced into the introduction opening 41 to the laundry and dehydration tank 8 (laundry tank). The housing (surface plate 30 and inner plate 40) of the filter portion 33. The housing includes a surface plate 30 on which the filter portion 33 is formed, and an inner panel 40 which is disposed opposite to the surface plate 30 and is detachably attached to the surface plate 30. The surface plate 30 is provided with a scraping portion 35 that scrapes the swarf D (foreign matter) adhered to the inner panel 40. Therefore, the scraping unit 35 can scrape the wire scraps D attached to the inner panel 40 by the dewatering operation, and thus the wire scraps D can be simply and cleanly discarded.

Moreover, in this embodiment, the surface plate 30 is comprised so that it can slide freely with respect to the surface direction of the rear plate 40a of the inner panel 40. Thereby, since the scraping part 35 can be always slid on the inner panel 40, the wire scraps D can be easily collected.

Moreover, in this embodiment, the housing is provided with a guide plate 34 that guides wash water from the introduction opening 41 to the filter unit 33. Thereby, the washing water W rising from the lower part of the casing can be smoothly changed to a downward flow, so that the washing water W can flow to the lower end of the filtering part 33, and the collection performance of the wire dust D can be improved.

Moreover, in this embodiment, the filter part 33 is formed in substantially lattice shape. Thereby, the wire backflow prevention rib 37 can be formed in the frame part 33a, and the deformation | transformation of the filter part 33 can be suppressed. In addition, when the laundry is agitated in the washing and dewatering tank 8 during washing, it rubs against this, and a so-called washer effect can be exhibited.

Moreover, in this embodiment, the scraping part 35 is located in the lower end of the surface plate 30. Thereby, the entire line scraps collected in the inner panel 40 can be scraped off, and the washing water W introduced from the introduction opening 41 can be sent to the lower end of the filter portion 33.

In the present embodiment, the filter device F is installed in the washing and drying machine of the washing and dewatering tank 8 so that the finger hook 31 when the casing is disengaged from the washing and dewatering tank 8 is located at a depth deeper than that of the washing and dewatering tank 8. Halfway up. This makes it easy to detach the filter device F from the washing and dewatering tank 8.

As mentioned above, although the embodiment of this invention was described, this invention is not limited to the said embodiment, It can implement in various forms. For example, although the present embodiment is configured to slide the surface plate 30 and the inner panel 40 in the longitudinal direction (up and down direction), it is also possible to configure the surface plate 30 and the inner panel 40 to slide in the left and right direction.

In the present embodiment, although the introduction opening 41 is configured to partially overlap the upper portion of the filter portion 33, the upper end 40s of the inner panel 40 may be positioned at approximately the same height as the upper end of the filter portion 33. With this, when the cuttings adhere to the upper end of the filtering unit 33, the dewatering operation can collect the inner panel 40, and the collection performance of the cuttings of the filtering device F can be improved.

In the present embodiment, the inner panel 40 is exemplified to have a length of about one-half and a half from the up-down direction of the surface panel 30, but it may be reversed. At this time, a finger hook portion 31 or a locking claw 32 is formed on the inner panel 40, and a rectangular introduction opening is formed.

1‧‧‧washer dryer

8‧‧‧ Laundry and dehydration tank (laundry tank)

30‧‧‧ surface plate (shell)

30a, 30b‧‧‧Side panels

31‧‧‧ refers to the hook

32‧‧‧claw

33‧‧‧Filter Department

33a‧‧‧Frame

33b‧‧‧hole

33c‧‧‧Filter material

34‧‧‧Guide

35‧‧‧Scraping department

36‧‧‧Guide

37, 37a, 37b ‧‧‧ swarf backflow prevention rib

38‧‧‧ Embedded Department

40‧‧‧Inner panel (shell)

40a‧‧‧ rear panel

40b, 40c‧‧‧Side panels

41‧‧‧Introduction opening

42‧‧‧ Embedded hole

50‧‧‧Filter device housing

52‧‧‧case side opening

53‧‧‧lock hole

D‧‧‧Scrim (foreign body)

F‧‧‧ Filter device for washing machine

Q‧‧‧ Hollow Section

W‧‧‧washing water

FIG. 1 is a diagram illustrating the configuration of a washing machine according to an embodiment of the present invention. Fig. 2 is a front view of a filter device for a washing machine mounted on a filter device housing case. Fig. 3 is a perspective view of a filter device housing case and a filter device for a washing machine detached from the filter device housing case. FIG. 4 is a perspective view showing a state where the surface plate and the inner panel of the filter device for a washing machine are slid and separated. Fig. 5 is a perspective view when the inner panel of the filter device for a washing machine is shown from the inner side. FIG. 6 is a sectional view taken along line VI-VI of the filter device for a washing machine of FIG. 3. FIG. 7 is a vertical cross-sectional view showing the flow of washing water in a filter device for a washing machine assembled in a filter device housing case. FIG. 8 is an enlarged sectional view showing a part of a guide plate of a filter device for a washing machine in an enlarged manner. FIG. 9 is a cross-sectional view showing a state in which a surface plate and an inner panel are slid by a filter device of a washing machine, and debris such as wire scraps is scraped off.

Claims (6)

A filter device for a washing machine, comprising: a housing having an introduction opening through which washing water is introduced; and a filtering unit configured to return the washing water introduced through the introduction opening to a washing tub; the housing having: A surface plate on which the filter portion is formed; an inner panel disposed opposite to the surface plate so as to be releasably attachable to the surface plate; and a plurality of wire backflow prevention ribs formed on an inner surface of the filter portion on the surface plate A scraping section is provided to scrape the foreign matter adhering to the inner panel. According to the filter device for a washing machine according to claim 1, the surface plate is configured to be able to slide freely in a surface direction of the inner panel. According to the filter device for a washing machine according to claim 1 or claim 2, the surface plate is provided with a guide plate that guides washing water from the introduction opening to the filter unit. The filter device for a washing machine according to the first or second patent application scope, wherein the filter portion is formed in a grid shape. In the filter device for a washing machine according to the first or second scope of the patent application, the scraping portion is located at a lower end of the surface plate. A washing machine is a washing machine in which a filter device for a washing machine according to any one of the scope of application for a patent is applied to a washing tub, and the finger hook is used when the casing is detached from the washing tub The part is positioned higher than a half of the depth of the washing tub.