JP2013132304A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine which prevents washing water held in the washing machine from springing a leak all at a burst even if a filter body is removed when the washing machine is powered off.SOLUTION: The washing machine includes an outer tub for holding washing water, an inner tub, as a washing/dewatering tub, rotatably provided in the outer tub, and a foreign matter-collecting device which has a filter case having a water inlet opening and a water outlet opening formed therein, and a filter body sliding in an axial direction to be attached and detached to and from the filter case by rotation of a handle of a tip end of the filter case, in which watertight is maintained by contacting an outer peripheral surface of an annular elastic body attached to the filter body with an inner peripheral surface of the filter case. A recessed part is provided at a predetermined position in an axial direction of the filter case on a part of the inner surface in a circumference direction.

Description

  The present invention relates to a washing machine having a collection device that collects foreign matters such as lint flowing in drainage.

  2. Description of the Related Art Conventionally, a washing machine equipped with a filter body has been used as a collection device for collecting foreign matter contained in drainage when drained from a washing and dewatering tank. This filter body is clogged with lint while repeatedly using the washing operation, so that it can be attached to and detached from the filter case, and the lint etc. of the removed filter body can be removed and reattached. Is common.

  However, if the operation of the washing machine is started in a state where the filter body is not securely attached to the filter case, water leaks to the outside of the washing machine. In order to prevent this, the following Patent Document 1 is provided with a switch for detecting whether or not the filter body is mounted so that the operation of the washing machine can be started when it is detected that the filter body is mounted. Control is disclosed.

JP 2006-255326 A

  In the washing machine described in Patent Document 1, for example, when a customer turns off the power of the washing machine during a washing operation and the filter body is accidentally removed while washing water is accumulated in the washing machine, the switch does not function. Therefore, there is a possibility that a large amount of washing water inside leaks at a stretch and the surroundings of the washing machine are flooded.

  The present invention solves the above-described problem, and prevents the washing water accumulated in the washing machine from leaking at a stretch even when the filter body is removed when the washing machine is not powered on. The purpose is to provide a washing machine.

  An outer tub for storing washing water, an inner tub that is a washing and dewatering tub provided rotatably in the outer tub, a water supply mechanism for supplying the washing water into the outer tub, and the washing water in the outer tub A drainage mechanism for draining water, and a foreign matter collecting device in the drainage mechanism, wherein the foreign matter catching device is formed with a water inlet through which the washing water flows from the bottom of the outer tub and a water outlet through which the washing water flows out. The filter case, and a filter body that is slidable in the axial direction with respect to the filter case by rotating the handle at the tip, and the outer peripheral surface of the annular elastic body attached to the filter body is In the washing machine that maintains water tightness by contacting with the inner peripheral surface of the filter case, the filter case is a predetermined position in the axial direction of the filter case, and a recess is provided in a part of the inner surface in the circumferential direction, and the filter body is the innermost side To keep it watertight When the filter body is slid to a predetermined position on the near side by rotating the handle from the state where the annular elastic body reaches the position of the recess, the washing water flows out from the recess Configured.

  According to the present invention, even when an attempt is made to remove the filter body when the power of the washing machine is not turned on, a small amount of washing water first flows to alert the user of water leakage and A washing machine that prevents a large amount of washing water accumulated in the machine from leaking at once can be provided.

It is an external view which shows the drum type washing-drying machine of this invention. It is the side view which removed the side plate and showed schematic structure of the drum type washing-drying machine of this invention. It is the top view which showed the schematic structure of the drum type washing machine of this invention with the upper cover removed. It is AA sectional drawing of the outer tank in FIG. 2, and a washing and dehydrating tank. It is a longitudinal cross-sectional view which shows the bottom part of an outer tub and a washing / dehydrating tub. It is BB sectional drawing of the outer tank in FIG. 5, and a washing and dehydrating tank. It is a longitudinal cross-sectional view of a steam valve. It is a perspective view which shows a circulation pump, a filter case, and a piping system. It is a top view which shows the connection part of a circulation pump and a filter case. It is CC sectional drawing of the filter case and filter body in FIG. FIG. 10 is a CC cross-sectional view of the filter case and the filter body in FIG. 9 when the handle is rotated 90 degrees from the fully attached state in the removal direction. It is a groove shape outline figure of a filter case.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  FIG. 1 is an external view of a drum type washing / drying machine according to an embodiment of the present invention. 2 is a side view showing the internal structure, FIG. 3 is a plan view showing the internal structure (a part of the upper reinforcing member 36 is cut), and FIG. 4 is cut along the two-dot chain line in FIG. FIG. 5 is a sectional view of the bottom of the outer tub, and FIG. 6 is a sectional view taken along the two-dot chain line of FIG. 5 and viewed from the arrow BB.

  The casing 1 constituting the outer shell is mounted on a base 1h, and includes left and right side plates 1a and 1b, a front cover 1c, a back cover 1d, a top cover 1e, and a lower front cover 1f. The left and right side plates 1a and 1b are connected by a U-shaped upper reinforcing member 36, a front reinforcing member 37, and a rear reinforcing member (not shown), and form a box-shaped casing 1 including a base 1h. However, it has sufficient strength as a housing.

  Near the center of the front cover 1c, a door 9 is provided to close an insertion port for putting clothes in and out. The door 9 is supported by a hinge 9c provided in the front reinforcing member 37 so as to be opened and closed. When the door release button 9d is pressed, the lock mechanism (not shown) is released and the door 9 is opened, and the door 9 is locked and closed by pressing the door 9 against the front cover 1c. The front reinforcing member 37 has a circular opening for putting clothes in and out concentrically with an opening of the outer tub 2 described later.

  An operation panel 6 is provided at the upper center of the housing 1, and the operation panel 6 includes a power switch 39, operation buttons 12 and 13, and a display 14. The operation panel 6 is electrically connected to a control device 38 provided at the lower part of the housing 1.

  The detergent container 19 is located on the upper left side in the housing 1, is fixed to the upper reinforcing member 36 of the housing 1, and has openings in the upper portion and the front portion. From the front opening 19b of the detergent container 19, a drawer type detergent tray 7 is configured to be attached. When the detergent is to be put in, the detergent tray 7 is pulled out as shown by a two-dot chain line in FIG. . Further, the detergent container 19 has a water outlet 19a on the left side or slightly rearward, and the bottom surface of the detergent container 19 is formed in a mortar shape so that the position of the water outlet 19a is lowest.

  On the back side of the detergent container 19, components related to water supply such as a water supply electromagnetic valve 16, a bath water supply pump 17, and a water level sensor 34 are provided. The upper opening 19c of the detergent container 19 includes a water supply unit 15 to which a water supply electromagnetic valve 16 is attached. The top cover 1e is provided with a water supply hose connection port 16a from a water tap and a water absorption hose connection port 17a for remaining hot water in the bath.

  The washing / dehydrating tub 3 as an inner tub has a cylindrical drum structure that is rotatably supported, and has a large number of through holes 3b for water flow and ventilation on the outer peripheral wall and the bottom wall thereof. An opening 3a for putting clothes in and out is provided on the end face. A fluid balancer 3c integrated with the washing and dewatering tub 3 is provided outside the opening 3a. Further, the rotation center axis of the washing and dewatering tub 3 is inclined so that the horizontal or opening side is higher.

  The outer tub 2 for storing washing water is cylindrical, includes a washing and dewatering tub 3 coaxially, has a front surface opened, and a motor 4 attached to the outer center of the rear end surface. The rotating shaft of the motor 4 passes through the outer tub 2 and is connected to the washing and dewatering tub 3. An outer tub cover 2d is provided at the opening on the front surface, and water can be stored in the outer tub. The outer tub 4 is supported by a damper 5 whose lower side is fixed to the base 1h. Further, the upper side of the outer tub 4 is supported by an auxiliary spring 33 attached to the upper reinforcing member 36 to prevent the outer tub 4 from falling in the front-rear direction. In the center of the front side of the outer tub cover 2d, there is an opening 2c for taking in and out clothing. The opening provided in the opening 2c and the front reinforcing member 37 is connected by a rubber bellows 10, and the outer tub 2 is sealed with water by closing the door 9.

  A water supply port 2 a for supplying water and detergent into the outer tub 2 is provided at the rear portion of the left outer surface of the outer tub 2. The water supply port 2a and the water outlet 19a of the detergent container 19 are connected by a rubber bellows tube A20. In addition, the water supply port 2 a has a built-in steam valve 11.

  FIG. 7 is a cross-sectional view showing details of the steam valve 11. The steam valve 11 has a substantially cylindrical shape, and has a flange portion attached to the water supply port 2a of the outer tub 2 at the outer diameter portion. The inner diameter portion is larger in the downstream inner diameter φd2 than in the upstream inner diameter φd1, and both inner diameter portions are connected by a ring-shaped inclined surface 11a. The inclined surface 11a is formed so that the washing / dehydrating tub 3 side is high and the outer peripheral side of the outer tub 2 is low. The uppermost portion of the inclined surface 11a has a protruding portion 11b protruding inward, and the protruding portion 11b is provided with a plurality of pins 11c. An elliptical sheet 11d is attached to the inclined surface 11a so as to close the inclined surface 11a. A hole having the same arrangement as that of the pin 11c is provided at the end on the long axis side of the sheet 11d, and the hole is inserted into the pin 11c to fix the sheet 11d to the inclined surface 11a. Accordingly, the sheet 11d is fixed to the inclined surface 11a by cantilever support.

  The sheet 11d is made of flexible rubber or synthetic resin. When a force is applied to the seat 11d from above (during water supply), the seat 11d is deformed as indicated by a two-dot chain line in FIG. 7, the steam valve 11 is opened, and water flows. On the other hand, when the pressure in the outer tub 2 is higher than the pressure (atmospheric pressure) in the detergent container 19 as during drying, a force acts on the sheet 11d from below, the sheet 11d is pressed against the inclined surface 11c, and the steam valve 11 is closed.

  On the bottom surface of the outer tub 2, a concave recess 2 a is provided in the axial direction. The bottom surface of the recessed portion 2a is an inclined surface that descends from the front side to the rear side, and a drain port 21 is provided at the lowermost rear side of the recessed portion 2a. A drain hose 22 is connected to the drain port 21. A bottom circulating water inlet 18 is provided on the front side of the recess 2a. Moreover, the upper part of the hollow part 2a has the partition 2b continuous from the inner peripheral surface of the outer peripheral wall of the outer tub 2 so as to cover substantially half of the width of the hollow part 2a. The partition wall 2b is provided in a direction opposite to the rotation direction when the washing and dewatering tub 3 is dehydrated. The drain port 21 and the inflow port 18 are installed at positions shifted in the rotational direction of the washing and dewatering tub 3 from the center in the width direction of the recess 2a. For this reason, there is a partition wall 2 b above the drain port 21 and the inflow port 18.

  The depression 2a receives the water flowing out in the same direction as the rotation direction of the washing and dehydrating tub 3 from the through hole 3b to the inner peripheral surface of the outer tub 2 by centrifugal force due to the rotation of the washing and dehydrating tub 3 during dehydration, Guide to drain 21. The partition wall 2b has a function of blocking the water that has entered the recess 2a so as not to circulate again into the outer tub 2.

  An air trap 36 is provided at the lowermost portion of the rear end face of the outer tub 9 and is connected to a water level sensor 34 by a tube 35 to detect the water level in the outer tub 2.

  A circulation pump 24, a filter case 23, and a drain valve 25 are provided between the outer tub 2 and the base 1h. The filter case 23 has a cylindrical shape with an opening on the front side, and a removable filter body is attached to the inside of the filter case 23, and collects foreign matters such as lint and lint in the washing water. Further, the filter case 23 is inclined so that the front side is raised, and the filter 51 can be easily attached and detached by opening the door 1g provided on the lower front cover 1f and turning the handle 52. .

  The dry filter 8 is provided on the upper right side of the housing 1, and when the filter is cleaned, the mesh filter 8a is pulled out and taken out. A drying duct 29 is connected to the drying filter 8. The drying duct 29 is installed inside the back surface of the housing 1 and is connected to an intake port provided below the rear end face of the outer tub 2 through a rubber bellows tube B29a. A water cooling and dehumidifying mechanism (not shown) is built in the drying duct 29, and cooling water is supplied from the water supply electromagnetic valve 16d to the water cooling and dehumidifying mechanism by the water supply hose 32.

  The blower fan 28 is provided on the rear side of the drying filter 8, and its intake port is connected to the drying filter 8, and its discharge port is connected to the hot air duct 31 containing a heater (not shown). . The hot air duct 31 is connected to the front opening of the outer tub 2 via a rubber bellows tube (not shown).

  When the blower fan 28 is operated during the drying operation and the heater is energized, warm air blows into the washing and dewatering tub 3, warming the clothes and evaporating moisture. The air that has become hot and humid is sucked into the drying duct 29, cooled and dehumidified with cooling water flowing down the water-cooled dehumidifying mechanism, becomes dry low-temperature air, is heated again by the heater through the filter 8a, and the inside of the washing and dehydrating tank 3 Circulate to blow.

  Next, the structure of the foreign matter collecting device installed in the drainage mechanism of the drum type washing and drying machine according to the present embodiment will be described in detail with reference to FIGS. 2 and 8 to 12. 8 is a perspective view showing the circulation pump 24 and piping, FIG. 9 is a top view showing piping connection portions of the circulation pump 24 and the filter case 23, and FIG. 10 is cut along the two-dot chain line portion of FIG. It is sectional drawing.

  The circulation pump 24 is for sprinkling the washing water stored at the bottom of the outer tub 2 into the washing and dewatering tub 3 as a circulation shower, and by using this, the water saving performance is improved. And the foreign material collection apparatus in this embodiment collects not only the washing water drained out of the machine through the drain valve 25 but also the foreign matter contained in the washing water circulated into the washing and dehydrating tub 3 in this way. I can gather.

  As shown in FIG. 9, the foreign matter collecting apparatus of the present embodiment includes a filter body having a filter 51 and a handle 52 and a filter case 23 attached in the housing 1, and these are screw portions 23 c. , 52b is configured to be fitted and slid. Therefore, by rotating the handle 52 at the tip of the filter body, the filter body can be slid in the axial direction with respect to the filter case 23, and the filter 51 can be attached and detached together with the handle 52.

  Here, the filter 51 and the handle 52 are fitted with fitting claws 51 a and 52 a, and a groove is formed by combining the filter 51 and the handle 52. Further, by mounting the annular elastic body 53 such as an elastic packing in the groove portion, it is possible to prevent the annular elastic body 53 from dropping from the filter body. Further, the annular elastic body 53 installed between the filter 51 and the filter case 23 is compressed in the radial direction so that the washing water does not leak out of the machine.

  On the other hand, the bottom of the bottom of the filter case 23 is provided with a water inlet 23a through which washing water flows from the bottom of the outer tub 20 and a water outlet 23b through which washing water flows out. Further, the water inlet 23 a and the drain port 21 of the outer tub 2 are connected by a hose 22, and the water outlet 23 b and the drain valve 25 are connected by a hose 49. A drain hose 26 is connected to the drain valve 25 to drain the washing water out of the machine. Also, as shown in FIG. 12, a concave portion 54 extending in the axial direction is provided at a predetermined position in the axial direction of the filter case 23 and on a part (lower part) inner surface in the circumferential direction.

  FIG. 10 is a cross-sectional view taken along the line CC of FIG. 9 and shows a state in which the filter body is mounted on the innermost side. At this time, the outer peripheral surface of the annular elastic body 53 attached to the filter body is in contact with the inner peripheral surface of the filter case 23 so that watertightness is maintained. Note that the elongated gripping portion forming the handle 52 is at a position in a substantially vertical direction.

  Next, FIG. 11 shows a state in which the handle 52 is rotated 90 degrees counterclockwise, for example, from the state of FIG. 10 and the filter body is slid to the predetermined position in the axially outer side (near side). At this time, the elongated gripping portion of the handle 52 is positioned in a substantially horizontal direction. In addition, in the state shown in FIG. 11, a part of the annular elastic body 53 in the circumferential direction reaches the position of the recess 54, and a small amount of washing water flows out from the recess 54.

  In addition, since the circumferential direction dimension of the recessed part 54 in this embodiment is a width | variety which is not too large with 5 mm-15 mm (about 10 mm in FIG. 12), even if the cyclic | annular elastic body 53 reaches the position of the recessed part 54, there is as little water penetration In addition, it is possible to leak the washing water in an amount that can be recognized by the user.

  Next, after the state of FIG. 11, the handle 52 is further rotated counterclockwise (for example, 180 degrees from the state of FIG. 10), and the filter body is slid to a predetermined position on the near side. Since washing water will also flow out from the location, a large amount of washing water will leak out of the machine. When the handle 52 reaches a state where the handle 52 is rotated about 360 degrees from the state shown in FIG. 10, the filter body can be completely pulled out from the filter case 23.

  Here, when the handle 52 is rotated about 90 to 180 degrees from the state shown in FIG. 10 in which the filter body is mounted on the innermost side and watertightness is maintained, a small amount of washing water leaks out. This is because the angle at which the user can easily turn by one operation is about 90 to 180 degrees. With this single operation, the user notices a small amount of leakage and refrains from performing the second and subsequent operations.

  As described above, according to the present embodiment, even when an attempt is made to remove the filter body in a state where washing water is accumulated in the machine, before the large amount of washing water leaks out at once, the user should be careful of water leakage. Can be aroused.

  In the above-mentioned embodiment, the drum-type washing / drying machine having the circulation pump 24 has been described as the washing water circulation mechanism that circulates the washing water stored in the bottom of the outer tub 2 into the washing / dehydration tub 3. However, the present invention is not limited to such an embodiment, and is a vertical washing machine having a circulation mechanism that uses the centrifugal force of the rotating blades at the bottom to raise the washing water upward and sprinkle it into the tub. Alternatively, the circulation mechanism itself may not be provided, and a foreign matter collecting device as in the present embodiment may be provided in a path for simply draining water.

DESCRIPTION OF SYMBOLS 1 Housing | casing 2 Outer tub 3 Washing / dehydration tub 21 Drain port 23 Filter case 23a Water inlet 23b Water outlet 24 Circulation pump 51 Filter 51a, 52a Fitting nail 52 Handle 52b Screw part 53 Annular elastic body 54 Recessed part

Claims (4)

An outer tub for storing washing water, an inner tub that is a washing and dewatering tub provided rotatably in the outer tub, a water supply mechanism for supplying the washing water into the outer tub, and the washing water in the outer tub A drainage mechanism for draining water, and a foreign matter collecting device in the drainage mechanism,
The foreign matter collecting device includes a filter case in which a water inlet from which the washing water flows in and a water outlet from which the washing water flows out are formed from the bottom of the outer tub, and a rotating handle on the tip of the filter case. On the other hand, it has a filter body that can be slid in and removed in the axial direction,
In the washing machine that maintains the water tightness by contacting the outer peripheral surface of the annular elastic body attached to the filter body with the inner peripheral surface of the filter case,
It is a predetermined position in the axial direction of the filter case, and a recess is provided on a part of the inner surface in the circumferential direction.
When the filter body is attached to the innermost side and watertightness is maintained, the annular elastic body is moved when the filter body is slid to a predetermined position on the near side by rotating the handle. A washing machine characterized in that the washing water flows out of the concave portion after reaching the concave portion.   2. The washing machine according to claim 1, wherein after the annular elastic body reaches the position of the recess, the handle is further rotated to slide the filter body to a predetermined position on the near side, so that the washing is performed from other than the recess. A washing machine characterized by flowing water.   2. The washing water according to claim 1, wherein the washing water flows from the concave portion when the handle is rotated 90 degrees to 180 degrees from a state in which the filter body is mounted on the innermost side and water tightness is maintained. And a washing machine.   The washing machine according to claim 1, further comprising a washing water circulation mechanism that circulates the washing water stored in the bottom of the outer tub into the washing and dewatering tub.