JPH11169594A - Fully automated washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fully automated washing matching machine whose rinsing performance is improved by enhancing the rate of collecting lint in in-drum water in a washing/spin-drying drum regardless of the level of the in-drum water. SOLUTION: In a fully automated washing machine having a washing/spin- drying drum 12 having an agitator 14 rotatably disposed on its inner bottom part, an inner basket 18 attached to the inside of the washing/spin-drying drum 12 in such a way as to provide a predetermined gap 17 between them and having a number of water holes 19 formed through its sidewall, a filter mechanism 20 mounted at the middle of the inner surface of the side wall of the inner basket 18, and a filter part 24 fitted in the filter mechanism 20 to collect lint in in-drum water according to the flow of water in the inner basket 18,a partitioning rib 28 is provided in the gap 17, and a first hole 19a for the water hole 19 is formed through the part of the inner basket 18 on which the filter mechanism is mounted. A channel 29 through which the in-drum water circulates is formed from the back part of the agitator 14 to the filter part 24 of the filter mechanism 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully automatic washing machine having a rotatable washing / dehydrating tub in a water receiving tub.

[0002]

2. Description of the Related Art As is well known, a fully automatic washing machine has a water receiving tank elastically suspended in an outer box and a washing / dehydrating tank rotatably provided in the water receiving tank. The washing / dehydrating tub has an inner basket attached to the inside of the tub so as to provide a predetermined gap therebetween. The inner basket has a large number of water passage holes formed in a side wall. A filter mechanism for collecting lint in water in the tank is attached to the middle part. The filter mechanism rotatably supports a filter unit having a filter for collecting lint on a filter mounting base fixed to an inner basket, and a stirrer provided at an inner bottom portion of the washing / dewatering tub rotates. The filter unit swings according to the water flow of the tank water generated in the inner basket, and the lint in the tank water is collected by the filter of the filter unit.

However, in the above-mentioned prior art,
Since the filter mechanism collects the lint in the water in the tank by the filter portion that oscillates according to the water flow in the tank generated in the inner basket, the lint to be collected is along the inner surface of the side wall of the inner basket. Only lint in the flowing tank water and near the side wall where the filter mechanism is provided can be collected. As described above, since the filter mechanism mainly collects lint in the water in the tank flowing along the inner surface of the side wall of the inner basket, the lint collection rate is low, and when the water level in the tank is low, the filter mechanism is used. In this case, the amount of water in the tank passing through the filter section was small, and the trapping rate of lint was further reduced.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to reduce lint in water in a washing / dewatering tank regardless of the water level in the tank. An object of the present invention is to provide a fully automatic washing machine in which the collection rate is improved and the rinsing performance during washing is improved.

[0005]

SUMMARY OF THE INVENTION A fully automatic washing machine according to the present invention comprises a washing / dewatering tub having a stirring member rotatably provided at an inner bottom thereof, and a washing / dehydrating tub provided inside the washing / dehydrating tub. Between the inner basket, which is attached so that a predetermined gap is provided between the inner basket and a plurality of water passage holes formed in the side wall, a filter mechanism attached to an intermediate portion of the inner surface of the side wall of the inner basket, In a fully automatic washing machine having a filter section for collecting lint in water in a tub according to a water flow in an inner basket provided, a gap between a washing / dewatering tub and an inner basket and a filter mechanism of the inner basket. The attachment portion has a water passage through which water in the tank flows from the back surface portion of the stirrer to the filter portion of the filter mechanism, and further includes a filter mechanism attachment portion of the inner basket. The passage is constituted by a water passage hole formed in the portion, and the direction of punching the water passage hole is opposite to the water passage hole formed in the other portion. Further, the water passage of the filter mechanism mounting portion of the inner basket is constituted by a water passage hole formed in the portion, and the hole shape of the water passage hole is different from the water passage hole formed in the other portion. Further, the filter portion of the filter mechanism is supported by a filter mounting base mounted on the side wall of the inner basket, and the filter mounting base is provided in a tank that circulates a water passage through the filter portion. A discharge hole for discharging water is formed, and further, a plurality of discharge holes are formed in the filter mounting base, and the opening size of the discharge hole is arranged on the upper side. small In addition, the cross-sectional dimension of the water channel is the largest dimension at the portion that opens to the back surface portion of the agitator and becomes gradually smaller as going downstream. It is characterized by having.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIGS. 1 is a longitudinal sectional view, FIG. 2 is a longitudinal sectional view of a main part, FIG. 3 is a perspective view of a main part, and FIG. 4 is a view showing a main part of an inner basket.
4A is a perspective view, FIG. 4B is a cross-sectional view of a filter mechanism mounting portion, FIG. 4C is a cross-sectional view of another portion where the filter mechanism is not mounted, and FIG. 5 is a front view of the filter mounting base. FIG. 6 is a perspective view of a main part of the washing / dewatering tub, FIG. 7 is a perspective view showing a main part of the inner basket of the first modified embodiment, and FIG. 8 is a perspective view of the second modified embodiment. It is a perspective view which shows the principal part of a basket, FIG. 9 is a front view of the filter mounting base of a 2nd modification, FIG. 10 is a perspective view which shows the principal part of the inner basket of a 3rd modification, FIG. 11 shows the third
FIG. 12 is a front view of a filter mounting base according to a modification of the third embodiment, and FIG. 12 is a front view of a filter mounting base according to a fourth modification.

1 to 12, reference numeral 1 denotes a fully automatic washing machine, which is provided with a top cover 3 having a laundry entrance (not shown) at an upper end of an outer box 2 and a substantially square dish-shaped base at a lower end. The base plate 4 is provided with legs 5 at the bottom corners. The top cover 3 is provided with a control unit (not shown) for controlling a washing process on the front side, and an outer lid 6 for opening and closing the laundry entrance and exit. Also, inside the outer box 2 are hanging rods 7 having upper ends attached to four upper corners of the outer box 2.
And an elastic suspension mechanism 9 provided with a spring 8 at the lower end of the suspension bar 7. The water receiving tank 10 is elastically suspended in the outer box 2 by the elastic suspension mechanism 9 so as to be supported by a support arm 11 extending to the outer wall of the lower part of the tank.

A washing / dehydrating tub 12 made of polypropylene is rotatably housed in the water receiving tub 10, and a balance ring 13 is mounted on an upper portion of the stored washing / dehydrating tub 12. In this way, the water receiving tank 10 is elastically suspended by the elastic suspension mechanism 9 and the balance ring 13
Is mounted on the washing / dewatering tub 12, so that the vibration is not directly transmitted to the outer box 2 and the amplitude is increased during the dehydrating operation or the dehydrating rinsing operation.

On the other hand, a stirrer 14 is provided at the inner bottom of the washing / dehydrating tub 12, and a drive mechanism 16 mainly including a washing machine motor 15 is provided below and outside the water receiving tub 10. I have. The washing / dehydrating tub 12 is brought into a stationary state by the drive mechanism 16 at the time of washing or rinsing, etc., and the agitator 14 is rotated forward and reverse to rotate the laundry put in the tub together with the water in the tub to which the detergent has been added. And wash it with a stream of water,
In addition, the tank is rotated together with the replaced tank water or the tank water injected while draining, and rinsing is performed by a water flow. Further, at the time of dehydration or the like, the washing / dehydrating tub 12 is rotated at high speed together with the stirring body 14.

The washing / dewatering tub 12 has an inner basket 18 made of stainless steel with a predetermined gap 17 provided between the side wall portion and the vicinity of the outermost edge of the agitator 14 at the inner bottom. It has a double structure. The inner basket 18 has a large number of water passage holes 19 formed in the side wall thereof, and a filter mechanism 20 is attached to the middle portion of the inner surface of the side wall at a position where water in the tank flows when washing is easy. In addition, the water passage hole 19 formed in the inner basket 18
Among them, the four first holes 19a having the same hole diameter formed in the mounting portion of the filter mechanism 20 are formed by punching holes from the gap 17 side, which is the outer side of the inner basket 18, toward the inner side. And the filter mechanism 20
A second hole 19b formed in a portion other than the attachment portion
Is the gap 1 from the inner side to the outer side of the inner basket 18.
It is formed so that a hole is punched toward the side 7.

The above-described filter mechanism 20 is attached from the inner side of the inner basket 18 while covering the four discharge holes 21 formed in the inner portion in a substantially rectangular shape so as to communicate with the first hole 19a. Filter mounting base 22
And a filter section 2 rotatably mounted on the filter mounting base 22 with projections 23 provided on the upper and lower sides pivotally supported.
And 4. The filter portion 24 has a configuration in which a bag-shaped filter 26 is attached to a substantially rectangular frame-shaped filter frame 25. Further, the filter mount 22 has a predetermined height between the two holes at the middle and the uppermost and lowermost holes of the four discharge holes 21 arranged in the vertical direction so as to separate them from each other. Approximately arc-shaped convex part 2
7 are protruding.

Further, on the inner surface of the side wall of the washing / dewatering tub 12, two partition ribs 28 for vertically partitioning the gap 17 provided between the inner basket 18 and the lower rib interval a are provided. It is set up so that it is wider than the interval b and gradually narrows from the bottom to the top. The two partition ribs 28 form a water passage 29 extending from a position facing the back surface of the stirring body 14 to a first hole 19a formed in a portion where the filter mechanism 20 of the inner basket 18 is attached. The cross-sectional area of the water channel 29 is such that the lower portion facing the back surface of the stirring body 14 has the upper first hole 1.
9a is larger than the formation portion.

In the above-mentioned construction, for example, laundry and detergent are put into the inner basket 18 of the washing / dewatering tub 12 and injected with water. The washing is performed by rotating the agitator 14 forward and backward. The laundry put in the inner basket 18 rotates together with the water in the tub and the washing proceeds. In the process, the water in the tub flows in the inner basket 18 while rotating forward and backward, and at the same time, the inner surface of the side wall of the inner basket 18 The tank water flowing along the tank passes through the filter mechanism 20, and the lint in the tank water is collected by the filter 26 of the filter unit 24 which rotates according to the flow of the tank water.

In addition, the flow of water in the tank also occurs on the back side of the stirring body 14 due to the forward and reverse rotation of the stirring body 14. Then, the water in the tank on the back side where the flow has occurred flows into the water channel 29 from an opening provided to face the back surface of the stirring body 14. After that, the water in the tank flows from the lower part to the upper part in the water channel 29,
After passing through the first hole 19a formed in the filter mechanism 20 mounting portion of the inner basket 18 and the discharge hole 21 of the filter mounting base 22, it flows into the filter 26 of the filter portion 24, and the water passage 29 is formed from the vicinity of the agitator 14. The lint in the tank water flowing through the tank is collected. At this time, the first hole 1
Since the hole 9a is punched in the same direction as the water flow in the tank, the burrs around the hole formed by the hole punching do not obstruct the flow of water in the tank, and the water in the tank flows smoothly into the channel 2.
9 flows into the filter mechanism 20.

Further, when rinsing of the laundry left in the inner basket 18 after the washing is completed, the rinsing body 14 is similarly reciprocated by pouring the water into the inner basket 18 or while rinsing the laundry. Due to the rotation, the water in the tank is generated on the front side and the back side, and the water in the tank flowing along the inner surface of the side wall of the inner basket 18 and the water in the tank flowing from the lower part to the upper part of the water channel 29 are respectively filtered. And the lint in the water in the tank is collected. Further, when washing is performed easily in a state where the amount of laundry is small and the water level in the tub is low, the front and rear sides of the stirring body 14 are rotated in the same manner as in the case where the water level is not low. The water in the tank is generated on the side, and the water in the tank flowing along the inner surface of the side wall of the inner basket 18 and the water in the tank flowing from the lower part to the upper part flowing into the water passage 29 from the opening having a large sectional area. Then, the lint in the water in the tank is collected by passing through the filter mechanism 20.

For this reason, only water in the tank flowing along the inner surface of the side wall of the inner basket 18 passes through the filter mechanism 20, and
Compared to the case where lint in the tank water is collected by the filter 26 of the filter unit 24, the tank water flows through the water passage 29 from the back surface of the agitator 14 and flows into the filter mechanism 20, and is filtered by the filter 26. Since the amount of lint collected increases by the amount of lint collected, the lint collection rate is improved. The same applies to the case where the water level in the tank is low. In this case, the amount of water in the tank flowing along the inner surface of the side wall of the inner basket 18 and passing through the filter mechanism 20 is reduced by the lower water level. As a result, the lint collection rate is reduced, but the amount of lint in the tank water flowing from the opening having a large cross-sectional area from the back surface of the agitator 14 and flowing through the water passage 29 and flowing into the filter mechanism 20 is collected. The amount of lint collected increases, and the collection rate improves. In addition, by improving the lint collection rate, the lint on the laundry is reduced,
The rinsing performance is better.

In the above-described embodiment, the water passage holes 19 formed in the inner basket 18 are the first hole 19a and the second hole 19b having the same diameter in the opposite direction of the boring process. Although the filter mechanism 20 is configured by the filter mounting base 22 corresponding to the above, the present invention is not limited to this, and the main parts are configured as in the following modified embodiments, and the other parts are the same as in the above-described embodiment. May be configured.

First, a first modification will be described with reference to FIG. Many water holes 32 are formed in the inner basket 31. The first basket 32 has three first holes 32a which are larger in diameter than the second holes 19b formed in the other parts of the inner basket 31 where the filter mechanism (not shown) is mounted. I have. The three first holes 32a have the same hole diameter, and are punched inward from the gap between the inner basket 32 and a washing / dehydrating tub (not shown), which is the outside. Is formed. With such a configuration, this modified embodiment has the same operation and effect as the above embodiment.

Next, a second modification will be described with reference to FIGS. Many water holes 34 are formed in the inner basket 33. A second hole 19b formed in the other portion of the inner basket 33 where the filter mechanism (not shown) is attached is formed in the other portion where the filter mechanism is not attached.
One of the first and second vertical holes having different hole shapes.
Hole 34a is formed. Further, the first hole 34a is formed so as to be punched inward from the gap side between the inner basket 33 and a washing / dehydrating tub (not shown) which is not shown. Further, the filter mounting base 35 mounted on the filter mechanism mounting portion of the inner basket 33 is formed in a substantially rectangular shape, and an elongated discharge hole 36 is formed in the inner portion in the vertical direction,
Protrusions 27 are formed near the upper and lower ends of the discharge holes 36 so as to protrude. The filter mount 35 is attached to the inner basket 33 from the inside while covering the discharge hole 36 so as to communicate with the first hole 34a, and a filter unit (not shown) is rotatably attached. With such a configuration, this modified embodiment has the same operation and effect as the above embodiment.

Next, a third modification will be described with reference to FIGS.
This will be described below. The inner basket 37 has many water holes 3
8 are formed. A second hole 1 formed in another portion of the inner basket 37 where the filter mechanism is not attached is formed in a portion where the filter mechanism is not attached.
Two first holes 38a are formed in parallel with each other and formed by elongated holes having different hole shapes in the vertical direction. The first hole 38a is formed so as to be punched inward from the gap between the inner basket 37 and a washing / dehydrating tub (not shown). Further, the filter mounting base 39 mounted on the filter mechanism mounting portion of the inner basket 37 is formed in a substantially square shape, and has a vertically elongated oblong discharge hole 40 arranged in parallel in the inner portion thereof. The protrusion 27 is formed near the upper and lower ends of the discharge hole 40 so as to protrude. The discharge hole 40 is formed in the filter mounting base 39 in the first position.
The filter is mounted on the inner basket 37 from the inside while covering so as to communicate with the hole 38a, and a filter unit (not shown) is rotatably mounted. With such a configuration, this modified embodiment has the same operation and effect as the above embodiment.

Next, a fourth modification will be described with reference to FIG. Reference numeral 41 denotes a filter mounting base of a filter mechanism which is mounted on a predetermined mounting portion of an inner basket (not shown). The filter mounting base is formed in a substantially rectangular shape. In addition, the hole diameter sequentially from the upper hole to the lower hole is, for example, 4 mm,
It is formed to be as large as 5 mm, 6 mm, and 7 mm. Further, the filter mount 41 is provided with a predetermined space between the two holes at the middle and the uppermost and lowermost holes of the four discharge holes 42 arranged in the vertical direction so as to separate them. A convex portion 27 having a substantially partial arc shape having a height protrudes. Although not shown, four first holes having different water passage hole diameters corresponding to the four discharge holes 42 of the filter mount 41 are provided in the filter mechanism mounting portion of the inner basket to which the filter mount 41 is mounted. It is formed vertically. The first hole has a larger diameter from the upper hole to the lower hole in the same manner as the discharge hole 42. A large number of second water passage holes are formed in other parts of the inner basket where the filter mechanism is not attached. With this configuration, the modified embodiment has the same operation and effect as the above-described embodiment, and the discharge hole 42 of the filter mounting base 41 and the first hole of the inner basket are respectively formed as upper holes. Since the hole diameter increases in order from the lower hole to the lower hole, even when washing is performed easily with the water level in the tank low, an improved lint collection rate can be obtained.

[0022]

As is apparent from the above description, according to the present invention, regardless of the water level in the tub, the collection rate of lint in the tub water in the washing / dewatering tub is improved, and the rinsing performance is better. And the like.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part according to an embodiment of the present invention.

FIG. 3 is a perspective view of a main part in one embodiment of the present invention.

4 (a) is a perspective view, FIG. 4 (b) is a cross-sectional view of a filter mechanism mounting portion, and FIG. 4 (c) is a view showing a main part of an inner basket according to an embodiment of the present invention. It is sectional drawing of other parts to which a filter mechanism is not attached.

FIG. 5 is a front view of the filter mount according to the embodiment of the present invention.

FIG. 6 is a perspective view of a main part of a washing / dehydrating tub according to one embodiment of the present invention.

FIG. 7 is a perspective view showing a main part of an inner basket according to a first modification of the embodiment of the present invention.

FIG. 8 is a perspective view showing a main part of an inner basket according to a second modification of the embodiment of the present invention.

FIG. 9 is a front view of a filter mount according to a second modification of the embodiment of the present invention.

FIG. 10 is a perspective view showing a main part of an inner basket according to a third modification of the embodiment of the present invention.

FIG. 11 is a front view of a filter mount according to a third modification of the embodiment of the present invention.

FIG. 12 is a front view of a filter mount according to a fourth modification of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 ... Washing / dehydration tub 14 ... Agitator 17 ... Gap 18 ... Inner basket 19,32,34,38 ... Water holes 19a, 32a, 34a, 38a ... First hole 19b ... Second hole 20 ... Filter mechanism 21, 36, 40, 42 ... discharge holes 22, 35, 39, 41 ... filter mount 24 ... filter part 26 ... filter 28 ... partition ribs 29 ... water channel

Claims (6)

[Claims] 1. A washing / dewatering tub having an agitator rotatably provided at an inner bottom thereof, and a washing / dehydrating tub having a predetermined gap provided inside the washing / dehydrating tub. An inner basket having a large number of water holes formed in a side wall, a filter mechanism attached to an intermediate portion of the inner surface of the side wall of the inner basket, and a water flow inside the inner basket provided in the filter mechanism. In a fully automatic washing machine having a filter unit that collects lint in water in the tub, the agitator is provided in the gap between the washing / dehydrating tub and the inner basket and the filter mechanism mounting portion of the inner basket. A water channel through which the water in the tub flows from the rear surface portion of the filter mechanism to the filter portion of the filter mechanism. 2. A water passage in a filter mechanism mounting portion of the inner basket is constituted by a water passage hole formed in the portion, and a hole-piercing direction of the water passage hole is formed in a water passage hole formed in another portion. 2. The fully automatic washing machine according to claim 1, wherein the direction is opposite. 3. A water passage of a filter mechanism mounting portion of the inner basket is constituted by a water passage hole formed in the portion, and a hole shape of the water passage hole is different from a water passage hole formed in another portion. The fully automatic washing machine according to claim 1, wherein: 4. The filter mechanism has a filter portion supported by a filter mount mounted on a side wall of the inner basket, and discharges water in a tank flowing through a water channel to the filter portion on the filter mount. The fully automatic washing machine according to claim 1, wherein a hole is formed. 5. The fully automatic apparatus according to claim 4, wherein a plurality of discharge holes are formed in the filter mounting base, and the opening size of the discharge holes is smaller as being arranged on the upper side. Washing machine. 6. The cross-sectional dimension of the water channel has a maximum dimension at a portion opening to the back surface portion of the agitator, and has a progressively smaller dimension as it goes downstream. Fully automatic washing machine as described.