JP2017144123A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a lint collection property of a filter unit, and to improve operability at maintenance.SOLUTION: A washing machine includes: a recirculation water passage part 11 constituted on an inner peripheral side wall part of a washing and dewatering tub 4, and for introducing washing water and allowing it to rise and pass by the rotation of a pulsator 7; and a filter unit 12 for lint collection which is detachably provided at a mounting part 17 of the recirculation water passage part 11, in which a filtering member is provided, and which is constituted integrally by a front cover 32 and a rear cover 31 by claw fitting. The recirculation water passage part 11 forms protrusive convex ribs 20 at the mounting part 17, and the filter unit 12 forms concave parts 19 for avoiding contact with the convex ribs 20 when being mounted on the mounting part 17. With this constitution, the filter unit 12 can capture lint without being greatly affected by a water level. As the lint cannot be seen from the outside, it has a clean feeling. In the case of performing maintenance by cleaning the inside of the filter unit 12, erroneous mounting of the filter unit 12 is prevented, and operability can be improved.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a washing machine that performs washing, rinsing, and dehydration processes.

  Conventionally, this type of washing machine circulates the washing liquid using a circulating water channel installed on the inner wall of the washing and dewatering tub, and is provided at the top of the washing and dewatering tub to reduce lint sticking to the laundry. A configuration has been proposed in which a lint filter collects lint generated by agitation of laundry from a washing liquid circulating in a circulation channel (for example, see Patent Document 1).

  FIG. 9 is a longitudinal sectional view of a conventional washing machine described in Patent Document 1. In FIG.

  In FIG. 9, a plurality of circulation water channel covers 66 are attached to the inner surface of the washing and dewatering tub 63, and a plurality of independent circulation water channels 67 a and 67 b are formed between the washing and dewatering tub 63.

  Further, a blade 68 is integrally provided on the back surface of the stirring blade 62, and a pump chamber 69 formed on the outer periphery of the blade 68 is communicated with the circulation water channels 67a and 67b. And the opening part 70 opened toward the inside of the washing and dewatering tank 63 is formed in the upper part of the circulating water channels 67a and 67b, and the water spray nozzle 71 is provided in the opening part 70 in the upper part of the circulating water channel 67b. A bag-like lint filter 72 is provided in the upper opening 70.

  The motor 73 drives the stirring blade 62 via the V belt and the speed reduction mechanism 75. The water level sensor 76 is connected to the lower part of the water receiving tank 61 and detects the water level in the washing and dewatering tank 63 and inputs the output to the control device 77.

  With the above configuration, in the washing process and the rinsing process, the stirring blade 62 is rotated according to the rotation of the motor 73, and the laundry 83 and the washing liquid in the washing and dewatering tub 63 are stirred. On the other hand, the washing liquid between the blades 68 provided on the stirring blades 62 and the washing / dehydrating tub 63 is pushed out to the outside of the bottom of the washing / dehydrating tub 63 by the rotation of the blades 68, and the circulation water channels 67 a and 67 b are passed through. The water is intermittently sprinkled from the watering nozzle 71 and the lint filter 72 into the washing and dewatering tub 63 according to the rotation of the motor 73. As a result, the lint generated from the laundry in the washing and dewatering tub 63 is sequentially collected in the lint filter 72.

Japanese Patent Laid-Open No. 7-31785

  However, in the conventional configuration, the lint collected by the bag-like lint filter is clearly visible from the appearance, and if the lint is not removed, the lint filter becomes dark due to mold over time, There was a problem of making the user feel unclean.

  Further, when a small amount of laundry is washed at a low water level, there is a problem that the amount of the washing liquid that is lifted up to the upper lint filter is small, and the lint cannot be sufficiently collected.

The present invention solves the above-described conventional problems, and provides a box-type filter unit at the intermediate height of the inner side surface of the washing and dewatering tub to collect lint and install the filter unit. It is an object of the present invention to provide a washing machine that prevents erroneous installation of the filter unit and improves operability.

  In order to solve the above-described conventional problems, a washing machine of the present invention includes a main body, an outer tub supported in an anti-vibration manner inside the main body, a washing and dehydrating tub that is rotatably included in the outer tub, A pulsator that is rotatably arranged at the center inner bottom of the washing / dehydrating tub and has a plurality of radial blades formed on the back surface thereof, a motor that rotationally drives the pulsator and the washing / dehydrating tub, and an inner periphery of the washing / dehydrating tub A reflux water passage portion configured on the side wall portion for introducing and raising the washing water by rotation of the pulsator, and a filter unit for collecting lint that is detachably provided in a mounting portion of the reflux water passage portion. The mounting portion of the reflux water channel portion is formed with a protruding convex rib, and the filter unit is formed with a recess that avoids contact with the convex rib when mounted on the mounting portion. It is what.

  As a result, the filter unit can collect lint without being greatly affected by the water level, and since the lint is not visible from the outside, there is a sense of cleanliness, and the inside of the filter unit is cleaned for maintenance. In this case, it is possible to prevent the filter unit from being erroneously mounted and to improve the operability.

  The washing machine of the present invention can improve the operability by preventing the filter unit from being erroneously installed, as well as improving cleanliness due to the fact that the collected lint is not visible.

1 is a longitudinal sectional view of a washing machine according to Embodiment 1 of the present invention. Perspective view with a part broken away showing the inside of the washing and dewatering tank of the washing machine An exploded perspective view of the filter unit mounting portion of the washing machine Longitudinal sectional view of the filter unit mounting part of the washing machine The perspective view seen from the back of the filter unit of the washing machine Enlarged view of the rib of the filter unit mounting part of the washing machine The perspective view which shows incorrect attachment of the filter unit of the washing machine The perspective view which shows incorrect attachment of the filter unit of the washing machine Vertical section of a conventional washing machine

  The first invention includes a main body, an outer tub supported in an anti-vibration manner inside the main body, a washing and dewatering tub rotatably contained in the outer tub, and a central inner bottom portion of the washing and dehydrating tub. A pulsator having a plurality of radial blades formed on the back surface thereof, a motor for rotationally driving the pulsator and the washing / dehydrating tub, and an inner peripheral side wall of the washing / dehydrating tub, and the rotation of the pulsator A recirculation water channel portion for introducing and raising washing water, and a thread waste collecting filter unit that is detachably provided on the recirculation water channel mounting portion; In addition to forming a protruding convex rib, the filter unit is formed with a recess for avoiding contact with the convex rib when mounted on the mounting portion.

  As a result, the filter unit can collect lint without being greatly affected by the water level, and since the lint is not visible from the outside, there is a sense of cleanliness, and the inside of the filter unit is cleaned for maintenance. In this case, it is possible to prevent the filter unit from being erroneously mounted and to improve the operability.

In the second invention, in particular, the convex rib according to the first invention has a configuration in which the intermediate portion has a sloped portion with a gentle peak from the upper portion to the lower portion, thereby preventing catching when the filter unit is mounted. Thus, operability can be improved.

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

(Embodiment 1)
FIG. 1 is a longitudinal sectional view of a washing machine according to an embodiment of the present invention, and FIG. 2 is a partially broken perspective view showing the inside of a washing and dewatering tub of the washing machine.

  In FIG. 1 and FIG. 2, the main body 1 supports the outer tub 3 in a suspension and vibration-proof manner by the suspension 2, and supports the washing / dehydrating tub 4 rotatably in the outer tub 3.

  The washing and dewatering tub 4 has a number of dewatering holes 5 on the side wall, and a fluid balancer 6 for vibration reduction at the upper part of the inner periphery. A pulsator 7 for agitating clothes is disposed at the center inner bottom of the washing and dewatering tub 4. The pulsator 7 is formed in a pan-shaped shape having an outer periphery as an inclined surface, and a plurality of radial blades 42 on the back surface. Is forming.

  The transmission mechanism unit 8 is provided as a power transmission means to the washing and dewatering tub 4 and the pulsator 7, and includes a reduction gear (not shown) and a clutch for switching the washing / dehydrating shaft (not shown). And a brake (not shown) for stopping the rotation of the washing and dewatering tub 4 during dehydration.

  The motor 9 is attached to the outer bottom portion of the outer tub 3, transmits power to the transmission mechanism portion 8 via the belt 10, and rotates the pulsator 7 or the washing / dehydrating tub 4.

  A reflux water channel portion 11 is formed on the inner peripheral side wall of the washing and dewatering tub 4, and the lower end of the reflux water channel portion 11 communicates with the side of the lower space portion of the pulsator 7, and the reflux water channel portion 11 is threaded. A filter unit 12 for collecting garbage is detachably attached. As a result, when the pulsator 7 rotates, the washing water is lifted into the reflux water channel 11 by the pumping action of the radial blades 42 on the back surface of the pulsator 7, the lint is collected in the filter unit 12, and the washing water is filtered. From the opening 41 on the front side of the unit 12, it returns to the washing and dewatering tub 4 as the reflux water 13.

  3 is an exploded perspective view of the filter unit mounting portion of the washing machine according to the embodiment of the present invention, FIG. 4 is a longitudinal sectional view of the filter unit mounting portion of the washing machine, and FIG. 5 is a filter unit of the washing machine. FIG. 6 is an enlarged view of the rib of the filter unit mounting portion of the washing machine, and FIGS. 7 and 8 are perspective views showing erroneous mounting of the filter unit of the washing machine. .

  3, 4, 5, and 6, the filter unit 12 is formed in a substantially rectangular box shape, and collects lint in the washing water by a filtering member (not shown) provided therein. It is supposed to be.

  The filter unit 12 includes a front cover 32 and a rear cover 31 provided with an opening 41 for discharging the reflux water 13. The front cover 32 has a filtering member and serves as a filter component. The outer surface in close contact with the reflux water channel portion 11 is formed.

And the filter unit 12 fits the fixing leg part 14 extended in the substantially L shape at the lower part of the front cover 32 to the water channel opening part 16 communicating with the circulation path of the washing water of the reflux water channel part 11, By engaging the claw portion 15 having a curved portion formed on the upper portion of the front cover 32 with the hook portion 18 of the reflux water channel portion 11, the mounting portion 17 formed in the recess shape in the reflux water channel portion 11 is engaged. And can be attached detachably.

  Here, since the width dimension in the radial direction of the water channel opening 16 into which the fixing leg 14 is fitted is smaller than the width in the radial direction of the filter unit 12, when the filter unit 12 is to be reversely mounted, As shown in FIG. 7, even if it tries to fit, even if it inserts, it cannot be inserted any more, and it has a reverse mounting | wearing prevention structure which cannot fit properly.

  Further, the rear cover 31 of the filter unit 12 has a plurality of concave portions 19 formed on the mounting portion 17 side of the reflux water channel portion 11, and when the filter unit 12 is mounted, the rear cover 31 makes contact with the convex ribs 20 formed on the mounting portion 17. The recess 19 avoids this. In addition, the convex rib 20 has the inclined part 40 where the gentle intermediate part became a mountain height from the upper part toward the lower part.

  Even if the reverse mounting of the filter unit 12 is not noticed due to the configuration of the concave portion 19 and the convex rib 20, even if it is forcibly mounted, the front side of the front cover 32 abuts on the convex rib 20 and is mounted as shown in FIG. It is a reverse mounting prevention configuration that cannot be done.

  Further, since the convex rib 20 is provided with an inclined portion 40 having a gradually increasing height from the upper portion toward the lower portion, the rear cover 31 of the filter unit 12 is caught when the filter unit 12 is correctly mounted. And can be installed smoothly.

  As described above, in the present embodiment, the reflux water channel portion 11 that is configured on the inner peripheral side wall portion of the washing and dewatering tub 4 and introduces and raises the washing water by the rotation of the pulsator 7 and the reflux water channel portion. 11, a filter unit 12 for collecting lint, which is provided detachably on the mounting portion 17 and has a filtration member and is integrally formed by claw fitting with a front cover 32 and a rear cover 31; The reflux water channel portion 11 has a protruding convex rib 20 formed on the mounting portion 17, and the filter unit 12 has a concave portion 19 that avoids contact with the convex rib 20 at the time of mounting on the mounting portion 17. Therefore, the filter unit 12 can collect the yarn waste without being greatly affected by the water level, and since the yarn waste is not visible from the outside, there is a sense of cleanliness, and the inside of the filter unit 12 is cleaned. Maintenance Case that, to prevent erroneous mounting of the filter unit 12, it is possible to improve operability.

  Further, the convex rib of the filter unit 12 has an inclined portion 40 whose middle portion has a gradual peak from the upper part to the lower part, thereby preventing catching when the filter unit 12 is mounted and improving operability. Can be improved.

  As described above, the washing machine according to the present invention can prevent erroneous attachment of a filter unit for collecting lint and improve operability. Applicable for washing machine applications.

DESCRIPTION OF SYMBOLS 1 Main body 2 Suspension 3 Outer tub 4 Washing and dewatering tub 7 Pulsator 9 Motor 11 Reflux channel part 12 Filter unit 17 Mounting part 19 Concave part 20 Convex rib 31 Rear cover 32 Front cover 40 Inclined part 42 Radial blade

Claims (2)

A main body, an outer tub that is supported in an anti-vibration manner inside the main body, a washing and dehydrating tub that is rotatably contained in the outer tub, and a rotary inner surface that is rotatably disposed at the center inner bottom of the washing and dehydrating tub. A pulsator formed with a plurality of radial blades, a motor that rotationally drives the pulsator and the washing / dehydrating tub, and an inner peripheral side wall portion of the washing / dehydrating tub, wherein washing water is introduced by the rotation of the pulsator A reflux water channel portion that is raised and passed; and a filter unit for collecting lint that is detachably provided on the mounting portion of the reflux water channel portion. The mounting portion of the reflux water channel portion has a protruding convex rib In addition, the filter unit is formed with a recess that avoids contact with the convex rib when the filter unit is mounted on the mounting unit. 2. The washing machine according to claim 1, wherein the convex rib has an inclined portion in which an intermediate portion has a gentle peak height from an upper portion toward a lower portion.

Images