JP2013081733A - Filter device for washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter device for washer applicable to the filtering of impurities with various sizes such as iron rust with simple configuration and a low cost filter medium.SOLUTION: The filter device is disposed in a water supply channel for supplying water from an external water source to a washing device. The filtering device comprises: a filter case with a water inlet at one end and a water outlet at the other end; a cylindrical core member contained in the filter case, the core member having a plurality of through-holes at its side wall; a filter medium supported by the core member, the filter member being made of fabric wound into a cylindrical shape; and a holding plate supported by one end of the core member so as to cover the filter medium, the holding plate having a surface orthogonal to a direction of water flow from the water inlet, thereby receiving water from the water inlet with the holding plate and filtering water by drawing it from the outer circumferential surface of the filter medium to the center thereof.

Description

  Embodiments described herein relate generally to a filtering device for a cleaning device that filters impurities in water.

  2. Description of the Related Art Conventionally, a washing machine, a dishwasher, or the like as a cleaning device includes, for example, an electromagnetic water supply valve, and the water inlet side of the water supply valve is connected to an external water source (for example, tap water). In general, a metal filter is mounted on the water inlet side of the seed water supply valve, and the filter structure has a mesh specification of, for example, 60 mesh per inch and an opening of about 0.24 mm to prevent impurities from entering. By the way, impurities may be mixed even in tap water as a water source. For example, when water supply facilities such as water pipes and storage tanks are provided, iron rust (red rust) may occur due to aging, and tap water may become muddy red (red water). .

  Such use of water containing iron rust naturally causes dirt and discoloration of the object to be cleaned, or rusting of the cleaning tank and water passage, etc., and it can also accumulate inside the water supply valve. There is also a risk of malfunction. In addition, various sizes of iron rust are mixed, for example, fine ones of about several μm are mixed, and in the general filter function of the above-mentioned water supply valve, this kind of fine impurities is introduced. The current situation is that filtration is not possible.

Then, the proposal which provided the filtration apparatus which has the filter medium which consists of sheet-like cloth | dough upstream, for example with respect to the water supply valve which a washing machine has was made | formed (for example, refer patent document 1).
However, in general, the filter medium that filters through water is based on a single sheet of dough, so it is possible that the filter medium can be easily fixed or has good water permeability. However, on the other hand, it is particularly easy to pass fine impurities. In addition, it is equivalent to the mesh specified for the dough material to be used, and the filtration performance of impurities is monotonous limited to the dough material, that is, the mesh will not change and stabilize each time, or it will be clogged early There is a risk of becoming.

  On the other hand, in order to use a water storage source such as bath water as an external water source, water is supplied using a water supply pump and used as washing water. Since this bath water use can be expected to have a good cleaning effect by water saving and warm water, washing machines that can utilize this kind of water supply pump are also widely used. And as a means for filtering bath water, for example, a cyclone separator is used to remove impurities (for example, see Patent Document 2).

  In addition, a water intake port with a filter is provided at the tip of the water supply path utilizing the water supply pump, and this is inserted into the bathtub. However, the filter generally has a sparse structure so as not to be clogged at an early stage. Not only is the filtration performance sufficient, but the bath water contains a wide variety of impurities, from large to fine. Therefore, it is difficult to obtain a stable filtration function, and the use of bath water is liable to cause germs that cause yellowing and unpleasant odors in the laundry. There is a need for improvement.

JP 2011-92330 A JP 2005-152212 A

  Accordingly, it is an object of the present invention to provide a filtration device for a cleaning device that can be applied to the filtration of impurities of various sizes such as iron rust and can be constructed with an inexpensive filter medium with a simple configuration.

  The filtration device for a cleaning device of this embodiment is a filtration device provided in a water supply path for supplying water from an external water source to the cleaning device. The filtration device includes a filtration case having a water inlet at one end and an outlet at the other end, a cylindrical core member housed in the filtration case and having a plurality of through holes in a peripheral wall, and held by the core member And a holding plate having a surface that is supported at one end of the core member so as to cover the filter medium and has a surface that is perpendicular to the inflow direction of water from the inflow port. Then, after the water from the inlet is received by the holding plate, it is filtered by passing water from the outer peripheral surface side to the center side of the filter medium.

The longitudinal cross-sectional view of the whole structure which shows the structure (a) of the upper half which shows the set state of the filtration apparatus by 1st Embodiment, and a use condition (b) External appearance perspective view which shows the state which applied the filtration apparatus by 1st Embodiment to the washing machine The disassembled perspective view which shows the structure of the water supply path containing the filtration apparatus by 1st Embodiment. The disassembled perspective view of the filtration apparatus by 1st Embodiment The figure which shows the winding-up procedure (a) of a filter medium by 1st Embodiment, (b) External appearance perspective view (a) which shows the modification of the holding plate by 1st Embodiment, and longitudinal cross-sectional view (b) 6 (a) and 6 (b) equivalent diagrams showing different modifications of the above. FIG. 1B equivalent diagram according to the second embodiment FIG. 4 equivalent diagram according to the second embodiment FIG. 1B equivalent view according to another embodiment. FIG. 1 (b) equivalent view showing another different embodiment The longitudinal cross-sectional view of the filtration apparatus and sanitization apparatus by 3rd Embodiment External appearance perspective view which shows the state which applied the filtration apparatus and sanitization apparatus by 3rd Embodiment to the washing machine with a built-in water supply pump FIG. 4 equivalent diagram according to the third embodiment Exploded perspective view of the sterilization apparatus according to the third embodiment The fragmentary sectional view which expands and shows the peripheral part of the water supply pump with a built-in washing machine by 3rd Embodiment The block diagram which shows the electric constitution by 3rd Embodiment FIG. 15 equivalent view showing a modification according to the third embodiment. FIG. 12 equivalent diagram according to the fourth embodiment FIG. 13 equivalent diagram according to the fourth embodiment

(First embodiment)
Hereinafter, a first embodiment that is applied to a washing machine as a cleaning device and uses tap water as an external water source will be described with reference to FIGS.

  2 is an external perspective view showing a use state of the filtration device applied to the washing machine, and outlines the general configuration of the washing machine and the like shown in the drawing. A main body 2 that forms an outer shell of the washing machine 1 includes a substantially rectangular box-shaped outer box 3 and a top cover 4 that is attached so as to cover the upper surface side thereof. The top cover 4 is provided with an operation panel 5 positioned in the front, and a lid 6 for opening and closing a laundry inlet (not shown) is provided at a substantially central portion, so that the inside of the tank body (not shown) can be opened. A water supply port 7 (details will be described later) for allowing the laundry to be taken in and out and for supplying water to the tank body is provided projecting upward.

  In addition, as said tank body, it is comprised from the stirring body, the porous rotary tank which can rotate, and the water tank arrange | positioned so that water storage is possible around it. The washing machine 1 provided with such a tank body has a function of automatically operating each process of washing, rinsing and dewatering. Therefore, in order to supply water from the water tap 8 (commonly referred to as “faucet”), which is an external water source, the water supply port 7 is supplied with a hose joint 9, a flexible water supply hose 10, and impurities in water described later. A filtering device 11 for filtering is connected in communication, and is provided in a water supply path from a so-called external water source to the water supply port 7.

  FIG. 3 is an exploded perspective view showing a part of the structure in the water supply path more specifically. In particular, a connection structure of the water supply path having the filtering device 11 is disclosed, and will be specifically described below. First, the water supply port 7 will be described. The water supply port 7 has a cylindrical shape protruding from the top cover 4, a male screw portion 7 a is integrally formed on the outer peripheral portion thereof, and a metal filter is formed on the inner peripheral portion. 12 is installed to prevent the entry of impurities. In addition, the annular packing 13 which has elasticity is inserted in the base part of an outer peripheral part, and the water leak in the connection part with the filtration apparatus 11 mentioned later is prevented. The water supply port 7 is directly connected to or integrally formed with a water supply port side of a water supply valve (not shown) provided on the back surface side of the top cover 4, and through a water supply valve communicating with the water supply port 7, Water can be supplied through an internal water supply path that leads from the water outlet side into the tank.

  A filtration device 11 is connected between the water supply port 7 and the water supply hose 10. The filtration apparatus 11 includes a filtration case 14 having a cylindrical shape with a large outer appearance, an inflow port 15 having a small diameter in the upper part of the case 14, and an outflow port 16 having the same shape in the lower part. ing. Among these, the outlet 16 and the water supply port 7 are connected as a connection configuration on the lower side of the filtration device 11. For example, in this embodiment, the internal thread part 16a is formed in the cylindrical internal peripheral surface of the outflow port 16, and it is set as the structure which meshes | engages with the external thread part 7a by the side of the water supply port 7. FIG. Therefore, it is fastened by both screw parts 16a and 7a, and packing 13 is pinched and connected in a watertight manner.

  On the other hand, on the upper side of the filtration device 11, a male screw portion 15 a is formed on the outer peripheral surface of the inflow port 15. On the other hand, a nut member 17 is attached to the lower end portion of the water supply hose 10, and this nut member 17 can rotate a female screw portion 17a also serving as a cylindrical opening and a knob portion 17b integrated therewith. The female screw portion 17 a is configured to mesh with the male screw portion 15 a on the upper portion of the filtration device 11. Therefore, in a state where the filtration device 11 is connected and fixed to the washing machine 1, the nut member 17 aligned by the flexible water supply hose 10 is fastened to the male screw portion 15 a. Also in this case, the elastic annular packing 18 inserted in the base part of the outer peripheral part of the inflow port 15 is pinched and connected in a watertight state. Therefore, a watertight and detachable connection structure is formed at the screw connection portion in each part.

  Next, the specific configuration of the filtration device 11 connected in the water supply path as described above will be described based on the longitudinal sectional view of the filtration device 11 shown in FIG. 1 and the same exploded perspective view shown in FIG. FIG. 1A shows the upper half of the filter device 11 in a state before use, and FIG. 1B is an overall view showing the use state of the filter device 11. Will be described with reference to FIG. 4B, and the operation description such as the use state will be described later. First, the filtration case 14 will be described. Each of the case main body 19 having a bottomed cylindrical shape and a cylindrical container shape and a cap 20 provided so as to cover the upper surface thereof are composed of two resin-molded members. At least the case main body 19 is formed of a transparent resin material (for example, acrylonitrile styrene resin, polycarbonate resin, acrylic resin, etc.), and the inside can be seen through.

  The case body 19 has the outflow port 16 integrally projecting at the center of the bottom portion, and protrudes inward (upward in the drawing) opposite to the outflow port 16, for example, a cylindrical cylindrical wall portion 21. Are integrally formed in a concentric position. Since the cylindrical wall portion 21 is smaller in diameter than the outflow port 16, a radial step portion is formed at the boundary portion thereof, and the elastic packing 13 is inserted using the step portion. Has been. Therefore, when the packing 13 is fastened to the water supply port 7 (see FIG. 3), the packing 13 is configured to be sandwiched between the tip portion of the water supply port 7 and the stepped portion. In addition, in the upper part of the case main body 19, for example, a female screw portion 19a is integrally formed on the inner peripheral surface of a cylindrical opening end.

  On the other hand, the cap 20 has an inverted dish shape and has the inflow port 15 projecting outward (upward in the drawing) at the center, and an external thread engaging with the internal thread 19a of the case body 19 on the outer peripheral end surface. The portion 20a is formed, and these are fastened via the packing 22 so as to be watertightly connected and detachable.

  In the filtration case 14 configured in this manner, as shown in FIGS. 1B and 4, a cylindrical core member 23 supported in a standing state at the center of the bottom of the case body 19, and the core member A filter medium 24 for removing impurities contained in water which is held outside 23 and a disk-shaped holding plate 25 mounted so as to cover the upper surfaces of the core member 23 and the filter medium 24 are incorporated and accommodated.

  Specifically, the core member 23 has, for example, a plurality of lattice-shaped through holes 23a formed on almost the entire surface of the peripheral wall, and has a good water permeability. This cylindrical shape is formed slightly larger in diameter than the cylindrical wall portion 21 protruding from the center of the bottom portion of the case body 19, and can be supported in an upright state by fitting the core member 23 to the cylindrical wall portion 21. It is said. Accordingly, the cylindrical wall portion 21 is erected to support the core member 23 detachably at a predetermined position, and also functions as a so-called positioning member.

  Next, the filter medium 24 will be described as long as it is a cloth fabric that can be wound around the outer periphery of the core member 23. For example, in this embodiment, used clothes, unnecessary shirts and underwear, stockings, towels, etc. The cloth is generally referred to as cloth cloth, for example, a relatively thin cloth cloth is cut into a size equivalent to the length dimension (the height dimension shown in the drawing) of the core member 23, and this is divided into multiple layers on the core member 23. (For example, about 9 layers) It is made to roll up.

  This state will be described with reference to the drawing showing the procedure for winding the filter medium 24 in FIGS. 5A and 5B. As shown in FIG. It is prepared in a state where it is spread on an appropriate flat surface, for example, by cutting according to the size along the height (height) dimension and the total length necessary for winding. The core member 23 is disposed on the starting end side of the cloth fabric, and the outer peripheral surface is wound while being rotated in the direction of the arrow in the figure so as to be wrapped with the cloth fabric, and is wound on the wound fabric fabric several times. Wrap in multiple layers. As shown in FIG. 2B, the state in which the cloth fabric of a predetermined length is finished is wound, and the filter medium 24 is formed by winding the cloth fabrics together, so that the core member 23 is not easily peeled off. The core member 23 is used as a core material, and a filter medium 24 made of cloth is wound around the core member 23 in a multilayered state. When this winding is performed, it is preferable to have a winding state in which end faces are aligned so that a part of the cloth material does not protrude from the upper and lower ends of the core member 23.

  In this way, the core member 23 holding the filter media 24 in a multilayered state is accommodated in the case body 19 with the cap 20 removed and the upper surface opened as shown in the exploded view of FIG. Specifically, as described above, the lower end portion of the core member 24 is fitted and held in the cylindrical wall portion 21. In this fitted state, as shown in FIG. 1 (b), it is possible to easily fit in a state having a slight gap S1, that is, easy attachment and detachability is obtained and the fitting can be supported. For example, the cylindrical wall portion 21 has a height that prevents the fitted core member 24 from easily falling and falling down.

  As a result, the core member 23 including the filter medium 24 is held upright at a predetermined accommodation position. In this case, the size (diameter) of the filter medium 24 is set such that a sufficient space can be secured between the cylindrical outer peripheral surface of the filter medium 24 and the inner peripheral surface of the case main body 19. Moreover, although the above-mentioned gap S1 is generated between the outer peripheral wall surface of the cylindrical wall portion 21 and the inner peripheral surface of the lower end portion of the core member 23, the lower end surface of the core member 23 is placed on the case body due to the weight including the filter medium 24. 19 is in close contact with the inner bottom surface, and the gap S <b> 1 does not continuously extend outward over the lower end portion of the core member 23.

  In this way, the holding plate 25 is mounted from a state in which the constituent body of the filter medium 24 and the core member 23 is accommodated in the case main body 19. First, the structure of the holding plate 25 will be described. The holding plate 25 may be a main part 26 having a flat upper surface and a disc shape, and a central part on the back side may be, for example, cylindrical or columnar. A basic configuration includes an annular support protrusion 27 that is integrally provided. This annular support protrusion 27 is the same as the above-described inner peripheral surface of the upper end portion of the core member 23, as in the fitting state having the gap S1 between the cylindrical wall portion 21 and the lower end portion of the core member 23 on the bottom side. It is configured to be fitted and supported through a slight gap S1. However, since the gap S1 is a radial gap, the gap when it is biased to one side is actually large. In such a support form, in the proper assembled state in which the back side of the holding plate 25 (main part 26) is in contact with the upper end surface which is one end of the core member 23, the holding plate 25 is supported in a horizontal state (FIG. 1). (See (b)).

  However, in this embodiment, in addition to the basic configuration of the holding plate 25, a plurality of pieces extending radially from the central portion of the upper surface, which is a horizontal surface of the main body 26 of the holding plate 25, as clearly shown in FIG. The protrusion 28 is provided. The protrusions 28 are formed in a radial shape except for a central portion facing the opening of the inlet 15 of the cap 20 and projecting in a plate shape. The radial projections 28 receive the water flowing in from the inflow port 15 and will disperse the water flow evenly in the outer circumferential direction, although a detailed description of the operation will be described later. The portion 28 is not limited to a plate shape, and may be implemented with various modifications, such as a cross-sectional mountain shape, or may not be a continuous protrusion shape.

  The holding plate 25 having the above configuration is fitted and supported on the core member 23 and accommodated in the case body 19, and then the cap 20 is attached to the upper surface opening of the case body 19. Specifically, a hollow container-like filtration case 14 is constructed in which the male threaded portion 20a and the female threaded portion 19a are fastened with the packing 22 interposed therebetween, and the connecting portion is watertight. A filtering device 11 having a filtering function such as a filter medium 24 is configured inside, and a water supply path from the water tap 8 to the water supply port 7 of the washing machine 1 is configured through the filtering device 11 as described above (FIG. 2).

  In addition, the code | symbol 43 shown in FIG. 2 is the water supply port for pumps directly connected with the water supply pump 44 built in the main body 2, and detailed description is mentioned later. The water supply port 43 for the pump is provided at a position facing the water supply port 7 in the rear portion of the top cover 4, and the other water supply port 7 can be said to correspond to a so-called water supply port.

Next, the operation of the filtration device 11 applied to the washing machine 1 having the above configuration will be described.
By opening the water tap 8 as a water source, operating the operation panel 5 to set a desired operation course and starting the operation, the operation is controlled by a control device (not shown), such as a washing process, an excessive process, and a dehydrating process. Operation is performed automatically. The water supply operation in the washing process will be described. A water supply valve (not shown) of the washing machine 1 is opened, and the tap water from the tap 8 is located on the upstream side of the water supply hose 10, the filtering device 11, and the water supply valve. Water is supplied to a tank body (not shown) in the main body 2 through the water supply port 7 and the like.

Hereinafter, the effect | action of the filtration apparatus 11 in the said water supply operation | movement is described in detail.
First, a description will be given with reference to FIG. 1B showing the use state of the filtration device 11. Tap water flowing from the tap 8 to the water supply hose 10 flows into the filtration case 14 from the inlet 15 of the filtration device 11. To do. This inflowing water is received by the holding plate 25 having a surface that is perpendicular to the inflow direction (indicated by the arrow A in the figure), so that the flow is converted to the outer peripheral side in the horizontal (lateral) direction. Flow toward (indicated by arrow B). In this case, in this embodiment, since the surface of the holding plate 25 has radial protrusions 28 extending from the center side to the outer periphery side, the circumferential water flow indicated by the arrow B is evenly dispersed by the protrusions 28. It flows under the action of. In addition, the holding plate 25 is mounted so as to cover the upper end portion of the filter medium 24, and receives the pressure of the flowing water and presses the core member 23 and the filter medium 24 on the back side from above, and thus the filter medium The inflow of water from the end face side of 24 is reliably prevented.

  Then, the water flows downward from the outer peripheral end of the holding plate 25 along the inner peripheral surface of the filtration case 14. The water that has flowed into the filter case 14 is in a state where the lower part of the filter medium 24 is immersed. However, since the internal structure of the filter medium 24 is in a state where the cloth fabric is wound and adhered in multiple layers, the water is in the filter medium 24. The inside of the filter case 14 is not filled immediately, but water is supplied so as to fill the blank space in the filter case 14 (indicated by an arrow C), and the filter case 14 is rapidly filled.

  As a result, the tap water pressure is applied in the filter case 14 and flows through the filter medium 24 through which water can pass. Specifically, water flows out from the outer periphery of the filter medium 24 to the center side through the through hole 23a of the core member 23 inside (shown by an arrow D), and the wall cylindrical 21 and the outlet 16 at the bottom of the filter case 14. (Indicated by an arrow E), the water is supplied to the water supply port 7 of the washing machine 1 shown in FIGS. 1 and 2 and water is supplied into the tank through a water supply valve (not shown). In this way, since all of the water supply is filtered through the filter medium 24, fine iron rust (red rust) is mixed in tap water as well as impurities that cannot be removed by the filter 12 that the water supply port 7 on the water inlet side of the water supply valve normally has. Even if it is, it can be removed effectively, and clean water from which impurities have been filtered can be sent to the water supply valve or tank in the downstream side.

  In addition, the holding plate 25 prevents the inflow of water from the cylindrical end surface that is the upper end portion of the filter medium 24 as described above, and converts the flow of the inflowing water in the direction of arrow A to a right angle in the direction of arrow B. For the filtration device 11, it is guided to flow down to the outer peripheral side of the filter medium 24 on the downstream side, and as a result, a flow of water effective for filtering inward from the cylindrical outer peripheral side of the filter medium 24 is obtained. Demonstrates effective action. In addition to this, it has the effect of depressing the upper end portion of the filter medium 24, and has the convenience of eliminating the problems in the filter medium 24 in which the cloth fabrics are unevenly wound, for example.

  Hereinafter, a specific example will be described. As a cause of unevenness, a case where the cloth material constituting the filter medium 24 cannot be accurately wound around the core member 23 as shown in FIG. For example, even if the cloth fabric is sized to match the length (height) of the core member 23, a part of the middle of the state in which the cloth is wound in a multi-layered cylindrical shape may be protruded manually. Conceivable. Fig.1 (a) has shown an example before use (before water supply operation | movement) set as the filtering apparatus 11 in the state in which some cloth fabrics protruded upwards. That is, in the uneven state in which the upper end of the cylindrical filter medium 24 protrudes, the holding plate 25 is lifted from the normal position, and the upper surface of the core member 23 that is essentially in close contact with the back surface of the holding plate 25. A gap S2 in the vertical direction is generated between the end surface.

  As a result, the gap S2 communicates with the gap S1 between the support protrusion 27. In addition, an irregular (including discontinuous) gap S3 may be formed between the upper end surface of the filter medium 24 and the holding plate 25 even though essentially no gap in the vertical direction is inherently generated. Then, when the water supply operation is started in such a state (see FIG. 1A), when the inside of the filtration case 14 is filled with water, the filter medium 24 is subjected to the tap water pressure as described above. When all the water is effectively filtered through the water from the outer peripheral surface side, in this case, there is a gap S3 and further to the gaps S2 and S1, the resistance to water flow through these gaps is It is weak and water starts to flow from the outside (indicated by arrow G in the figure). In this case, the distribution of the gaps S3 tends to be spread laterally. In this case, the inflow passage indicated by the arrow G is spread in the circumferential direction.

  The water that flows in the direction of the arrow G flows while deforming a part of the cloth fabric that protrudes due to tap water pressure, and a continuous gap passage is forcibly formed even in the initially discontinuous gap S3. And it will be in the state connected with the continuous clearance gaps S2 and S1 in the inward side, and water will flow in through these connected clearance path | routes, and will flow out through the hollow part of the core member 23. FIG. That is, the original filtering action of removing impurities such as iron rust does not function for water flowing through the gap path, and there is a possibility that water from the water source is supplied to the washing machine 1 as it is through the water supply valve.

  However, since the main body portion 26 of the holding plate 25 of the present embodiment has a surface facing the direction of the arrow A, the holding plate 25 directly receives the flowing water pressure in the direction of the arrow A based on the tap water pressure. The pressure in the pressing direction is applied. This acts to press the protruding part of the cloth material (filter medium 24), acts not only in the vertical gap S3, but also in the direction of reducing the gap dimension with respect to the gap S2, As a result, the gaps S3 and S2 can be eliminated.

  Therefore, after that, as described with reference to FIG. The contamination of the filter medium 24 due to impurities such as iron rust (red rust) can be visually observed from the outside of the transparent case body 19, and the replacement time of the filter medium 24 can be easily determined. In addition, although the end face of the filter medium 24 becomes uneven at the lower end portion due to the cloth cloth being rolled up, in this case, almost all the weight of the filter medium 24 is added to a part of the protruding portion, so that the inside of the filter case 14 By being accommodated in the predetermined position, it can be set in an appropriate state without generating a gap.

  On the other hand, FIGS. 6 and 7 show a modified example of the holding plate 25 extended in the above-described embodiment. The substantially same parts as those in the above-described embodiment are denoted by the same reference numerals, description thereof is omitted, and different. The points will be described in detail.

  First, as shown in FIG. 6A, an external perspective view of the holding plate 25, and in FIG. 6B, a sectional view of the holding plate 25, the modified example is a holding plate 25 having a basic configuration. Is substantially the same as that of the above embodiment, but is different in that a concave portion 29 is provided. Therefore, all the other components such as the assembly structure of the filtration device 11 are the same as those in the above embodiment. Therefore, the concave portion 29 will be described in detail. The concave portion 29 is in a circularly depressed shape at the center of the surface forming the flat surface of the main body portion 26 and is formed at a concentric position corresponding to the support protrusion 27 on the back surface side. . Therefore, when the concave portion 29 is incorporated in the filtration case 14 (for example, see FIGS. 1A and 1B), the concave portion 29 is at a position facing the inlet 15, and the main point is the inlet 15. It only has to be formed at a site that receives the water directly.

  According to such a configuration, when the water flowing in from the inflow port 15 is received by the flat surface of the holding plate 25, the water is immediately dispersed in the lateral direction, but when water is received by the concave portion 29, the concave portion 29 The action of the inner peripheral wall portion acting as a resistance to catch water is promoted, so that the water pressure received by the holding plate 25 based on the tap water pressure can be increased. That is, the action of depressing the holding plate 25 is promoted, the fitting support between the holding plate 25 and the core member 23 is ensured, and the upper end portion of the filter medium 24 is pressed, so that the above-described gap S3 ( This works more effectively to suppress FIG. 1 (a)).

  On the other hand, FIGS. 7A and 7B are diagrams corresponding to FIGS. 6A and 6B showing different modified examples, which are outside the main body portion 26 with respect to the holding plate 25 of the basic configuration. By forming the standing wall portion 30 rising upward around the periphery, the concave portion 31 is formed on the entire surface. In this case, the radial protrusions 28 in the above embodiment are removed.

  According to such a configuration, the tap water pressure is enhanced because the concave portion 31 receives water as in the above-described modification, and the standing wall portion 30 of the outer peripheral portion serves as a resistance of water dispersion to receive water. The water pressure received by the holding plate 25 based on this increases. Therefore, the holding plate 25 is pressed to ensure the fitting support between the holding plate 25 and the core member 23, and the upper end portion of the filter medium 24 is pressed to generate the above-described gap S3 (FIG. 1). It works more effectively to suppress (see (a)). In this modified example, since the concave portion 31 has a large diameter that covers almost the entire surface of the main body portion 26, it is advantageous in that a stable pressing action by the entire holding plate 25 can be expected instead of a biased pressing action. Moreover, since the internal volume of the recessed part 31 is large, it can be expected that the action of pressing down the holding plate 25 based on the weight load caused by receiving a large amount of water in addition to the tap water pressure can be expected.

As described above, according to the first embodiment applied to the filtration device 11 of the washing machine 1, the following effects can be expected.
Since the filtration device 11 for removing impurities such as iron rust (red rust) is provided on the upstream side of the water supply valve of the normal washing machine 1, it is possible to avoid concerns such as malfunction of the water supply valve due to impurities and induction of rust. Problems such as dirt on the laundry and discoloration (yellowing) can also be solved. In addition, the degree of freedom of use with respect to water sources such as tap water is increased, and it can be effectively used as washing water without being restricted by the water conditions in the area of use.

  And the said filtration apparatus 11 accommodates the filter medium 24 which is hold | maintained at the core member 23 in the filter case 14, and winds cloth cloth in the shape of a cylinder, and is supported by the upper part of the core member 23, and the upper end surface of the filter medium 24 A disc-shaped holding plate 25 is provided so as to cover the surface. This holding plate 25 directly receives the water flowing into the filter case 14, converts the flow in the outer peripheral direction and disperses it, thereby allowing the water to pass from the outer peripheral surface side to the center side of the filter medium 24, and effectively. It is effective for promoting the filtration function. Moreover, since the holding plate 25 covers the filter medium 24, water is prevented from flowing in a short circuit from the upper end surface side of the filter medium 24.

  Therefore, since the filter medium 24 can wind cloth cloth in multiple layers, the filtration range can be expanded and fine impurities such as iron rust can be effectively removed. In addition, it can be widely used as a kind of cloth fabric by wrapping it, and the amount of wrapping can be adopted at your discretion, so you can freely select and use it at home, such as general clothing such as old clothes, stockings, towels, etc. Therefore, the filter medium 24 can be easily obtained without being expensive and difficult to obtain, such as an ion exchange resin, and the filter device 11 that is simple and excellent in convenience can be provided.

  Further, since the main body 26 has a surface that faces the direction of the arrow A shown in FIG. 1, the holding plate 25 directly receives the fluid water pressure in the direction of the arrow A based on the tap water pressure. The pressure in the direction of pressing down 25 acts on 25. Accordingly, the holding plate 25 provided to cover the filter medium 24 is effective for maintaining the fitted state of the holding plate 25 by the core member 23, and the cloth cloth (filter medium 24) is wound around the end face of the filter medium 24. Even if a part of the protrusion protrudes, it can be pressed down to reduce the gap indicated by the gap S3 in the drawing, and can be eliminated, and the flow of water from the gap S3 can be prevented. This means that a flow of water effective for filtering flowing from the cylindrical outer peripheral surface side of the filter medium 24 toward the center side can be obtained, and the entire filter medium 24 can be effectively utilized.

  As described above, the holding plate 25 that directly receives the water flowing into the filtration case 14 is provided with the protrusions 28 that extend radially outward from the center side on the surface of the flat main part 26. Can be distributed evenly in the outer circumferential direction (lateral direction), the water pressure applied to the holding plate 25 and the bias of the water flow can be suppressed, and a smooth water flow that does not cause a vortex or the like can be expected.

  On the other hand, the filter case 14 that accommodates the filter medium 24 uses, in the present embodiment, a cylindrical container-like case main body 19 and a cap 20 that use a fastening means that can be easily attached and detached by screw connection, and the filter medium 24 and the holding plate 25. The core member 23 that accommodates and holds in a predetermined position is also configured to be fitted and supported via the gap S1 to the cylindrical wall portion 21 at the bottom of the case main body 19, and is also an easily detachable support means. Therefore, the detachment operation such as when the filter medium 24 is replaced by the user is simple and convenient.

  Moreover, as a means for discriminating the replacement time of the filter medium 24, the case main body 19 is formed of a transparent resin material so that the degree of contamination of the filter medium 24 due to impurities such as iron rust (red rust) can be easily confirmed from the outside. . Therefore, it can be replaced without losing the replacement time according to the degree of soiling due to local water circumstances, and an appropriate water supply operation and an effective filtering action against impurities can be expected. However, the transparent configuration is not limited to the case main body 19, and for example, the entire filtration case 14 may be transparent, or a partial transparent range in which the inside can be seen through may be provided.

  On the other hand, in the different modified examples shown in FIGS. 6 and 7, the water tends to be immediately dispersed in the outer peripheral direction (lateral direction) in the holding plate 25 that receives the water flowing into the filtration case 14. The concave portions 29 and 31 that provide flow resistance are provided, and the action of receiving the water is promoted, so that the water pressure received by the holding plate 25 can be increased. Accordingly, the action of pressing down the holding plate 25 is promoted, and the fitting support between the holding plate 25 and the core member 23 is ensured, and the upper end portion of the filter medium 24 is pressed to form the gap S3 (FIG. 1A). For example, it is possible to obtain an effective water flow for filtering. Among them, in the modified example of FIG. 7, it is possible to obtain a stable pressing action on the entire holding plate 25 and to further promote the pressing action due to weight because the internal volume for receiving water is large.

  In the above embodiment, the holding plate 25 and the core member 23 are incorporated as separate members. However, the present invention is not limited to this. For example, the holding plate and the core member can be integrated so that the attaching / detaching operation can be easily performed. It is also possible to do.

(Second Embodiment)
8 and 9 show the second embodiment, FIG. 8 is a diagram corresponding to FIG. 1B, and FIG. 9 is a diagram corresponding to FIG. Hereinafter, substantially the same parts as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different parts are described.

  The filter device 38 of the present embodiment is different in that the filter medium 24 is held inside the core member 33 while the filter medium 38 is held outside the core member 23 in the above embodiment. To do. For this reason, the core member 33 and the holding plate 34 are characterized by the configuration described below.

  First, the core member 33 has a large diameter and a bottomed cylindrical shape. A plurality of lattice-shaped through holes 33a are formed on the peripheral wall, and a circular hole 33b is formed at the center of the bottom wall. The hole 33b is detachably fitted to the cylindrical wall 36 at the bottom of the case body 19. The cylindrical wall portion 36 is different from the cylindrical wall portion 21 in the above embodiment only in that the height protruding in a cylindrical shape is lowered. The reason is that in the present embodiment, the core member 33 is supported without falling down at a wide bottom portion having a large diameter. Accordingly, since the hole 33b and the cylindrical wall portion 36 need only be in a fitted state (a state of preventing displacement) in order to be placed and supported at a predetermined position of the core member 33, the cylindrical wall portion 36 is the core. The thickness of the bottom portion of the member 33 is sufficient, and it is highly significant that the cylindrical wall portion 36 functions as a positioning member that supports the core member 33 at a predetermined accommodation position.

  The holding plate 34 is an annular support protrusion 35 protruding downward at the outer peripheral end of the disc-shaped main body 37 so that the holding plate 34 is fitted and supported at the upper end of the core member 33 as one end of the cylinder. Are integrally formed. That is, the support protrusion 35 has an inner diameter that is slightly larger than the outer diameter of the core member 33. For example, the support protrusion 35 has the same gap S1 as described in the above embodiment, and can be easily fitted and supported.

  On the other hand, the filter medium 32 is a form in which the cloth cloth itself is rolled up, and is common to the cloth cloth described in the above embodiment, but is preferably as long as possible (long). However, even a short cloth fabric can be rolled up and layered while being replenished to form a cylindrical shape having a desired diameter, and a cylindrical size that does not cause margins in the core member 33 as much as possible. It is preferable that the diameter is large.

  In addition, the arrows A to E shown in FIG. 8 indicate the flow direction of water and indicate that the flow of water indicated by the same reference numerals in FIG. 1B of the above embodiment is substantially the same. . However, this embodiment differs from the above embodiment only in that it flows from the core member 33 through the internal filter medium 32 as a path. Moreover, since the center part of the filter medium 32 is a winding start end part and there is little overlap condition (adhesion degree) between cloth fabrics, the tendency for water to flow downward from this center part (indicated by arrow D), It flows out smoothly from the lower outlet 16 (indicated by arrow E).

  As described above, according to the present embodiment, the filter medium 32 is housed and held in the core member 33, so that the filter medium 32 has a slightly different shape from that of the first embodiment. The overall function of the filtering device 38 is substantially the same as that of the first embodiment, such as the common function of the holding plate 34 and the core member 33. However, since the upper end surface of the filter medium 32 is covered with the holding plate 34 and the outer surface is surrounded by the core member 33, the wound filter medium 32 is not unwound and undisturbed. In FIG. 9, the individual components of the filtration device 11 are shown in an exploded manner. However, when the filter medium 32 and the like are set in a usable state in the filter case 14, for example, the filter medium 32 is preliminarily placed in the core member 33. If the housing 32 is housed and incorporated in the case main body 19 while being housed and held, the operation can be performed more easily.

(Other embodiments)
In each of the above-described embodiments, the filter medium is held by the core member. However, in this embodiment, the core member may not be held and may be modified or expanded as follows. The same parts as those in the above embodiments are given the same reference numerals, and different parts will be described in detail.

  First, FIG. 10 is a view corresponding to FIG. 1B showing another embodiment, and this filtering device 39 is substantially the same as the filter medium 32 described in the second embodiment (see FIG. 8), for example. The filter medium 32 is formed by winding only the cloth material and is placed and accommodated directly in the case main body 19. In this case, it is in a state where it is installed in a cylindrical shape in which the cloth fabric is wound, but it can be supported in a standing state using the weight of the filter medium 32 wound in multiple layers. Therefore, the bottom portion of the case main body 19 on which the filter medium 32 is placed forms a flat bottom surface in which only the water passage hole 19b communicating with the lower outlet 16 is opened at the center portion.

  The flat plate-like holding plate 40 provided so as to cover the upper end portion of the filter medium 32 is placed and supported in a state in which the flat rear surface is joined to the upper end surface of the filter medium 32. In this embodiment, a convex portion 41 that protrudes slightly downward is formed at the central portion of the back surface of the holding plate 40, and this is inserted using a gap in the central portion that is the beginning of winding of the filter medium 32. By doing so, the positional displacement of the holding plate 40 with respect to the filter medium 32 is prevented. The remaining configuration of the filtration case 14 is the same as that of each of the above embodiments.

  According to such a configuration, during the water supply operation, the holding plate 40 receives water from the inflow port 15 (indicated by the arrow A), converts the flow of water in the lateral direction indicated by the arrow B, and hereinafter the arrows C, D, Flowing in the order of E, the filtering action by the filter medium 32 is performed satisfactorily in the same manner as in the above embodiments. Further, the holding plate 40 receives the water pressure flowing in the direction of arrow A and is reliably supported in a joined state with the upper end surface of the filter medium 32, and can function as the holding plate 40. Moreover, since the core member etc. which support the filter medium 32 can be omitted, the simplest and cheapest filter device 39 can be provided. In addition, when there is a possibility that the end of the winding end of the filter medium 32 may be peeled off due to the type of cloth material, for example, strings (threads, rubber bands, etc.) may be bound and bound in the circumferential direction of the filter medium 32. .

  On the other hand, FIG. 11 is a view corresponding to FIG. 1 (b) showing another different embodiment, and this filtering device 42 protrudes from the outer peripheral portion of the inner bottom portion of the case body 19 and is located outside the lower portion of the filter medium 32 placed and accommodated. An annular protruding step portion 19c that holds the portion is provided. Further, the holding plate 34 covering the upper part of the filter medium 32 is substantially the same as that of the second embodiment (see FIG. 8).

  According to such a configuration, the embodiment shown in FIG. 10 is superior in that it can be blocked by the protruding step portion 19c when the filter medium 32 is about to move. In addition, although the arrow AE which shows the flow of water in a figure is abbreviate | omitted, it is the same as that of said each embodiment, and exhibits a favorable filtration function. Further, the holding plate 34 can be variously developed in other manners, such as being able to be diverted between the holding plate 40 shown in the embodiment of FIG.

  In each of the above embodiments, the filtering device provided in the water supply path using tap water as the external water source has been described. FIGS. 12 to 20 show the third and fourth embodiments, both of which are bath water as the external water source. It relates to a filtering device provided in a water supply path using a water supply pump for a water storage source such as a bathtub (corresponding to a bathtub), and substantially the same parts as those in the above embodiments are denoted by the same reference numerals and description thereof is omitted. The different parts will be described in detail.

(Third embodiment)
12-18 show 3rd Embodiment and its modification, First, based on the external appearance perspective view which shows the state which applied the filtration apparatus and sterilization apparatus shown in FIG. 13 to the washing machine with a built-in pump. The general structure will be outlined. In FIG. 13, the inside of the main body 2 is illustrated from a pump water supply port 43 (shown by a broken line in the drawing) using a water supply pump 44 (shown by a broken line in the drawing) incorporated in the top cover 4 of the washing machine 1. The water supply hose 45 is connected to one end of a water supply hose 45 for a pump, and the other end of the water supply hose 45 is an external water supply source (not shown) such as a bathtub (bath water). ) Or the like, and the so-called water supply path extending to the water storage source is configured.

  First, the schematic configuration of the water supply hose 45 will be described. The tip of the water supply hose 45 is provided with a water inlet 46 that is put into the bathtub (bath water). Has a filter function. And it is divided through a water purification unit 47 which will be described later connected to the middle part of this water supply hose 45, specifically, the side having the water inlet 46 at the tip is a first hose 45a, The side connected to the pump water supply port 43 which is also the other washing machine 1 side will be described as a second hose 45b.

  Next, a description will be given based on FIG. 16 showing an enlarged peripheral portion of the water supply pump 44 described above. The water supply pump 44 includes a pump motor and a pump impeller (both not shown) as is well known. An internal water supply hose 48 communicating with the tank body is connected to the discharge side of the water supply pump 44. On the other hand, the water supply port 43 is integrally provided on the suction side of the water supply pump 44, and its cylindrical upper end protrudes from the upper surface of the top cover 4. In addition, the solid line arrow shown in FIG. 16 has shown the flow direction of the water in a water supply path | route by operation of the water supply pump 44, and the solid line arrow shown in previous FIG. 13 is also the same.

  Further, a specific configuration of the water supply hose 45 described above will be described with reference to FIG. First, a connection means between the second hose 45b of the water supply hose 45 and the water supply port 43 will be described. A connection member 49 made of resin is provided at the tip of the second hose 45b, and the connection member 49 is cylindrical. The fitting cylinder part 49a and the retaining lever part 49b are integrally provided. The retaining lever portion 49b has a lever shape that allows a seesaw motion with a connecting portion with the fitting tube portion 49a as a hinge function, and a lower end portion that is one end thereof is formed in a claw shape.

  Therefore, by inserting the fitting cylinder portion 49a into the water supply port 43, the fitting cylinder portion 49a is fitted in a watertight state via the packing 50, and the claw-like lower end portion of the retaining lever portion 49b is the top to maintain this fitting state. It is inserted into the engagement hole 4a of the cover 4 and engaged. Thereby, the movement of the retaining lever portion 49b is restrained and held in this state, and the connection state between the connection member 49 (fitting tube portion 49a) and the water supply port 43 is held. If the upper end portion of the retaining lever portion 49b is pressed, the lower end portion rotates to disengage the engagement state, and the fitting tube portion 49a can be easily detached from the water supply port 43. It is configured to be freely fitted and connected.

  The connection member 49 and the second hose 45b are connected to each other through the first connector member 51 so as to allow water to pass therethrough. Therefore, before describing the first connector member 51, first, the specific configuration of the second hose 45b will be described. The water supply hose 45 is made of resin and formed in a bellows shape, and has elasticity and flexibility. The hose configuration is used. Among them, the core member 52 is integrally welded along the spiral on the inner surface side of the second hose 45b so as to strengthen the elastic force so as to maintain the bellows shape.

  Therefore, the core member 52 is a hard metal wire and has a conductive wire 53 as a core, and the periphery thereof is covered with a resin insulating film 54, and the second member is interposed via the insulating film 54. The core member 52 (conductive wire 53) functions as an electric cable as will be described later.

  Here, the first connector member 51 will be described in detail. One end of the connector member 51 is electrically connected to the conducting wire 53, and the other end is detachable from a socket member 55 provided on the top cover 4 side. It is connected and can be electrically connected at the same time. That is, the socket member 55 is connected so that power is supplied from the washing machine 1 described later, and is connected to the control circuit 72 (see FIG. 17) of the washing machine 1 to automatically connect with the operation of the washing machine 1. It is set as the structure by which power interruption control is carried out.

  On the other hand, the other end of the second hose 45b is connected to the water purification unit 47 so as to allow water to pass therethrough as shown in FIG. 13 and is also electrically connected. The details will be described later. . One end of the other first hose 45a is also connected to the water purification unit 47 so as to allow water to pass therethrough. Then, next, the structure of the water purification unit 47 will be described. As shown in the longitudinal sectional view of FIG. 12, the water purification unit 47 includes a filtration device 11 and a sterilization device 56, which are surrounded by a unit case 57. It is said.

  However, the filtering device 11 is basically the same as that described in the first embodiment (see FIGS. 1 and 4). For example, FIGS. 12 and 14 showing this embodiment. When compared with the exploded perspective view of FIG. 4 (corresponding to FIG. 4), the holding plate 25 shown in the present embodiment shows a basic configuration that does not have the radial protrusions 28 on the upper surface. The protrusions 28 may be appropriately adopted as necessary, and the cylindrical inflow port 15 and the outflow port 16 provided on the upper and lower portions are configured to have no coupling thread portion. The coupling means by the screw corresponds to substantially the same configuration, for example, has no influence on the internal filtration function, and is therefore common to the filtration device 11 in the present embodiment. Some of the main components are denoted by the same reference numerals and description thereof is omitted.

A sterilization device 56 is disposed adjacent to the filtration device 11, and the sterilization device 56 has a configuration in which an ultraviolet lamp 59 is provided at the center of a hollow cylindrical sterilization tank 58. A water level sensor 71 for detecting the water level in the tank 58 is provided above the sterilization tank 58. Specifically, as shown in the exploded perspective view of FIG. 15, the sterilization apparatus 56 includes a tank main body 60 that has a bottomed cylindrical shape and a cylindrical container shape, and a lid body 61 that is watertightly joined so as to cover the upper surface thereof. The sterilization tank 58 is composed of a quartz glass tube 59b that covers an internal arc tube 59a. The ultraviolet lamp 59 is incorporated in a watertight state with the sterilization tank 58, and is inwardly connected. It is provided in a state of hanging from the top. The lid 61, which is the upper part of the sterilization tank 58, includes a cylindrical outlet 62 that extends upward, and a cylindrical inlet 63 that extends laterally near the bottom of the lower part.

  Furthermore, as shown in FIG. 12, the filtration device 11 and the sterilization device 56 are connected to each other so as to allow water to pass therethrough. Specifically, the outflow port 16 at the bottom of the filtration device 11 and the inflow port 63 at the bottom of the sterilization device 56 communicate with each other via, for example, a T-shaped joint member 64. For example, the joint member 64 has a water channel that forms a three-way along a T-shape, and one of the water channels is connected to a water drain pipe 65 as a water drain pipe, and passes through a water drain plug 66. The case 57 can be drained to the outside.

  On the other hand, as shown in FIG. 12, the unit case 57 has a container shape including the filtration device 11 and the sterilization device 56, and can be installed on a flat floor surface at the bottom (see FIG. 13). . In the upper part of the unit case 57, an outlet 67 having a diameter larger than that of the cap 20 is provided so that the filter medium 24 can be replaced, and an attaching / detaching lid 68 that is elastically attached so as to be detachable so as to cover the outlet 67 is provided. In the center of the detachable lid 68, the inlet 15 penetrates and projects upward. Note that a first hose 45a constituting the pump water supply hose 45 disclosed in FIG. 13 is detachably fitted and connected to the protruding inlet 15.

  On the other hand, in the upper part of the unit case 57 on the sterilization device 56 side, the outflow port 62 penetrates and protrudes upward. In addition, the 2nd hose 45b which comprises the water supply hose 45 disclosed in FIG.

  In this case, electrical connection is possible together with the connection of the second hose 45b. That is, the base connector of the hose 45b is integrally provided with a second connector 69 that is electrically connected to the conductor 53 (see FIG. 16) of the core member 52 as shown in FIG. The second socket member 70 provided on the 57 side is electrically connected. A conducting wire (not shown) introduced from the socket member 70 into the unit case 57 is electrically connected to the ultraviolet lamp 59 and the water level sensor 71 so that power can be supplied. In addition, in FIG. 13, the said core member 52 arrange | positioned helically in the 2nd hose 45b is shown with one broken line.

  FIG. 17 shows the electrical configuration of the present embodiment by a combination of main functional blocks. The control circuit 72 is mainly composed of a microcomputer and controls the overall operation of the washing machine 1. Has a control program. In the input port of the control circuit 72, the operation amount from the operation unit 5a of various switches of the operation panel 5, the water level detection signal from the water level sensor 73 for detecting the washing water level in the tank (not shown), and the amount of laundry from the rotation speed. In order to make a measurement, a rotation speed signal or the like from a rotation sensor 75 that detects the rotation speed of the motor 74 at the beginning of operation is given.

  On the other hand, the output port has a motor 74 as a driving source for washing, rinsing, dehydrating operation, a water supply valve 76 for supplying tap water, a drain valve 77 for discharging water in the tank, and the bath water described above. A water supply pump 44 and the like for supplying water are connected.

Furthermore, in the present embodiment, as described above, the sterilization apparatus 56 provided in the water supply path of the water supply hose 45 that is the water supply path outside the washing machine 1 passes through the core member 52 (conductive wire 53) along the second hose 45b. It is set as the structure which can be electrically connected with the washing machine 1 side. For example, as shown in FIG. 17, the ultraviolet lamp 59 and the water level sensor 71 of the sterilization apparatus 56 are connected to the control circuit 72 via the connector 51 and the like, and the operation can be controlled as the washing machine 1 is operated. .
In addition, the code | symbol 5a and 72-77 shown in the above-mentioned FIG.

  Next, in the washing machine 1 provided with the water supply pump 44 having the above-described configuration, the operation of the water purification unit 47 during the water supply operation will be mainly described. However, the filtration device 11 constituting the water purification unit 47 is described briefly because it is substantially the same as the description of the operation of the first embodiment described above. In this embodiment, the operation using the water supply pump 44 built in the washing machine 1 is executed. In this case, as shown in FIG. 13, the water supply hose 45 is connected to a pump water supply port 43 (see FIG. 16 for details), and at the same time, a core provided along the spiral in the second hose 45b. The sterilization apparatus 56 and the washing machine 1 side (control circuit 72) are electrically connected through the member 52 (conductive wire 53).

  In this state, when a laundry (not shown) is put into the tub and ready for the washing operation, the operation section 5a (shown only in FIG. 17) of the operation panel 5 is operated, and the washing operation course using the water supply pump 44 is performed. Etc. and start operation. The rotation sensor 75 shown in FIG. 17 detects the number of rotations of the motor 74 in the initial stage of operation, and the control circuit 72 that has input the detection signal determines the weight of the laundry and the required water level. When water is supplied to a predetermined water level, the water level sensor 73 detects this, turns off the water supply pump 44, completes the water supply operation, and starts the washing operation for washing the laundry.

  Thus, in this embodiment, since the said water supply operation | movement uses the water supply pump 44, it demonstrates concretely about the case where the bath water as an external water source is used, for example. As shown in FIG. 13, when the water supply pump 44 is driven, bath water is sucked from the water inlet 46 put in the bathtub and is supplied through the water supply hose 45 in the direction of the solid arrow. In the middle of this water supply, the bath water is purified through the water purification unit 47 and supplied into the tank body through the water supply port 43, the water supply pump 44, and the internal water supply hose 48 shown in FIG. (Shown in solid arrow direction).

  Therefore, the operation of the water purification unit 47 will be described with reference to FIG. 12. Bath water is first taken into the filtration device 11 from the first hose 45a. As indicated by solid arrows in the figure, the water is guided by the holding plate 25 and flows in the outer peripheral direction so as to diffuse, and flows through the filter medium 24 wound in a cylindrical shape from the side toward the inside. In the meantime, various impurities are filtered out. The bath water from which the impurities are filtered flows down and flows into the sterilization apparatus 56 side through the joint member 64. Naturally, the drain plug 66 is in a closed state (manual operation), and the water channel to the drain pipe 65 is closed.

  The water (bath water) flowing in from the lower part of the sterilization device 56 rises from below in the sterilization tank 58 and eventually reaches the high water level where the entire ultraviolet lamp 59 is immersed, and the water level sensor 71 detects this. To do. Upon receiving this detection signal, the control circuit 72 controls the lighting of the ultraviolet lamp 59 (the arc tube 59a) as shown in FIG. 17, and irradiates the water in the sterilization tank 58 with ultraviolet rays. Since the ultraviolet lamp 59 is almost entirely in water and starts to irradiate ultraviolet rays, the bactericidal action against germs in the water is effectively performed without waste.

  Furthermore, the water supply operation by the water supply pump 44 continues, and the purified water is taken into the washing machine 1 from the outlet 62 at the top of the sterilization tank 58 through the second hose 45b. Specifically, as shown in FIG. 16, the water is sucked into the water supply pump 44 from the water supply port 43 for the pump, and is supplied into the tank body from the internal water supply hose 48 connected to the discharge side of the pump 44. When this water supply operation proceeds and is eventually supplied to a predetermined water level, this is detected by a water level sensor 73 (shown only in FIG. 17) provided on the tank body side. Based on this detection signal, the control circuit 72 stops driving the water supply pump 44 to finish the water supply operation, and also cuts off the power supply to the ultraviolet lamp 59 and deenergizes it.

  Thereafter, control is performed in the same manner as a normal washing operation program, that is, for example, washing of detergent provided by driving the stirring body, rinsing, and dehydration by rotating the rotating tank are automatically executed. . In addition, since the bath water as washing water is subjected to the removal of impurities and the sterilizing action of various bacteria through the water purification unit 47, it is purified, so that it can be used as rinse water. However, the present invention is not limited to this, and for example, it is easy to make an operation program that uses tap water only for final rinsing. In this case, the water supply port 7 (see FIG. 13) for supplying tap water is also used in advance for water supply Needless to say, the water supply hose can be connected, and of course, as disclosed in the first embodiment (see FIG. 2), the water supply means may include the filtering device 11.

  Thus, according to the above-described third embodiment, in the configuration including the water supply pump 44 that supplies the washing machine 1 with water from the water storage source that is an external water source, the filtration device 11 provided in the water supply path In addition, a configuration through a sterilization apparatus 56 was adopted. Therefore, when bath water is used for washing as a water storage source, various impurities are efficiently filtered in the bath water in the same manner as in the first embodiment by the filtration device 11, while the bacteria removal device 56 removes various germs. By sterilizing, factors such as yellowing of the laundry and unpleasant odor are eliminated, and thus the purified bath water can be effectively used to save water or improve the cleaning effect.

  Further, the sterilization apparatus 56 includes an ultraviolet lamp 59 that irradiates ultraviolet water to the water under running in a sterilization tank 58 that can pass water, and the ultraviolet lamp 59 is connected to the control circuit 72 of the washing machine 1. It is electrically connected and can be controlled. That is, the operation of the water supply pump 44 is automatically controlled based on the operation program of the washing machine 1 and can be easily executed without making the washing operation complicated.

  In addition, the electrical connection between the ultraviolet lamp 59 and the washing machine 1 side is integrally provided in the second hose 45b of the water supply hose 45 as shown in FIGS. In addition to the reinforcement of the hose 45b, the connection is made through the core member 52 (conductive wire 53) that also functions as an electric cable. Therefore, when the second hose 45b is connected to a necessary portion, the connectors 51 and 69 are simultaneously connected. Thus, the electrical connection is made and the operation can be easily performed, and the function as the electric wire cable is protected by the reinforced second hose 45b itself.

  Furthermore, in the present embodiment, as shown in FIG. 12, a water level sensor 71 that can detect the upper water level in the sterilization tank 58 is provided, and the control circuit 72 operates the ultraviolet lamp 59 in response to this detection signal. Controllable. Thereby, the ultraviolet lamp 59 which irradiates ultraviolet rays in water can be arrange | positioned in a suitable position, and effective ultraviolet irradiation can be anticipated. Moreover, since the water flows in from the lower part of the sterilization tank 58 and flows out to the upper part, it is convenient to fill the tank 58 with water, and the sterilization tank 58 has a wider space than the water supply path before and after it. Therefore, the momentum of the water flow is weakened in the tank 58, and the irradiation of ultraviolet rays with respect to the water flow can be performed effectively.

  And since the drain pipe 65 and the drain plug 66 as drain pipes were provided in the lower part of the filtration apparatus 11 and the sterilization apparatus 56, the water supply operation by the water supply pump 44 after the operation is completed or for a while. If not, the drain plug 66 can be opened to drain the water remaining in the filter case 14 and the sterilization tank 58 to the outside, which is hygienic and freezes in winter. Can be avoided.

(Modification)
FIG. 18 is a view corresponding to FIG. This is a device in which a photocatalyst 78 is further added as a sterilization device 56, and a cylindrical photocatalyst 78 is disposed so as to fill the space in the sterilization tank 58 (tank body 60) around the ultraviolet lamp 59. It is. This photocatalyst 78 is made of a ceramic base made of porous (open cells) and coated with titanium dioxide, and the outer peripheral surface of the photocatalyst 78 and the inner peripheral surface of the sterilization tank 58 are in close contact with each other. Has been inserted into the state.

  According to the above configuration, in addition to the sterilizing action by the ultraviolet lamp 59, the photocatalyst 78 generates OH radicals having a strong oxidizing power when irradiated with ultraviolet light. These OH radicals are effective in purifying water by oxidizing and decomposing miscellaneous fungi and organic substances in bath water. Therefore, there is an advantage that water can be efficiently purified by utilizing the synergistic action of the ultraviolet lamp 59, and cleaner and hygienic water can be obtained with a simple configuration, and the application can be expanded.

(Fourth embodiment)
19 and 20 are a diagram corresponding to FIG. 12 and a diagram corresponding to FIG. 13 showing the fourth embodiment. The washing machine 1 of each of the above embodiments has a configuration in which the water supply pump 44 is built, whereas the washing machine 79 of the present embodiment does not include the water supply pump means as shown in FIG. That is, the top cover 4 of the washing machine 79 has only the water supply port 7 for supplying tap water directly connected to a water supply valve (not shown) as in the above embodiment. Therefore, in this embodiment, the water supply pump 80 is provided outside the machine, and water can be supplied to the washing machine 79 via the water purification unit 47.

  First, a water supply state using the water supply pump 80 shown in FIG. 20 will be described. This is provided with a water supply pump 80 at the tip which is one end of the bellows-shaped water supply hose 81, and a water storage source, for example, a not-shown bathtub (bath) is provided. Water). On the other hand, the other end of the water supply hose 81 is connected to a washing machine 79 via a water purification unit 47 on the way. However, since the washing machine 79 is not provided with anything other than the water supply port 7 directly connected to the water supply valve, here, the lid 6 is once opened and the open end of the water supply hose 81 is arranged toward the inside of the tank, The state where the lid 6 is closed again from the upper part of the water supply hose 81 is shown.

  Specifically, the water supply hose 81 includes a first hose 81a directly connected to the water supply pump 80 through the water purification unit 47, and a second hose 81b introduced into the washing machine 79. In addition, the first hose 81a is provided with a core member 52 (indicated by one broken line in FIG. 20) that functions as an electric cable that is electrically connected to the water supply pump 80. The water purification unit 47 is provided with a power cord 82 for supplying power. Although details will be described later, power is supplied to the water supply pump 80 via the core member 52, and a sterilization device in the water purification unit 47 is provided. 56 (see FIG. 19) can be supplied with power.

  Therefore, in more detail based on FIG. 19, the water purification unit 47 is common to the configuration described in the third embodiment (see FIG. 12), and of course the water (bath water) indicated by the solid line arrow. The flow direction is also common. The first hose 81 a is connected to the inlet 15 of the filtration device 11, and is connected to the water supply pump 80 at the tip thereof. On the other hand, the second hose 81 b is connected to the outflow port 62 of the sterilization device 56, and the other end is in open communication with the inside of the washing machine 79.

  Among them, the first hose 81a is provided with the core member 52 as described above, and the core member 52 has the same configuration as that of the above-described embodiment (for example, see FIG. 16), that is, a hard metal wire. In this configuration, the conductive wire 53 having conductivity is cored and the periphery thereof is covered with a resin insulating film 54. And it is made to function also as reinforcement of this hose 81a and an electric wire cable by integrating with the spiral inner surface of the 1st hose 81a by welding.

  In terms of the function as the electric cable, the core member 52 (conductive wire 53) applied to the first hose 81a is connected to the base end portion into which the hose 81a is fitted, and is a detachable connector. The power cord 82 (see FIG. 20) is electrically connected through the member 83 and the socket member 84. As for the sterilization apparatus 56, an ultraviolet lamp 59 and a water level sensor 71 are connected to a power cord 82 (not shown), and power is supplied via the power cord 82 connected to an external outlet (not shown) such as a room. It is possible. Note that the base end portion of the second hose 81b is connected to the outflow port 62 above the sterilization tank 58 by fitting, and the other end portion extends to the washing machine 79 as described above.

  According to the fourth embodiment having the above-described configuration, even in the washing machine 79 that does not include the water supply pump means, bath water that is a storage source of an external water source can be supplied to the washing machine 79 and used as washing water. That is, the water supply pump 80 is disposed in a water supply path outside the apparatus, and in a use state, the water supply pump 80 is put into a bathtub (bath water) and performs a water absorption operation. The water supply pump 80 enables a water supply operation by operating the water supply pump 80 by connecting a power cord 82 together with the filtering device 11 and the sterilizing device 56 to an outlet of an external power source.

  That is, the water supply pump 80 of the present embodiment can be operated independently from the washing machine 79, and if the second hose 81b of the water supply hose 81 is introduced into the tank of the washing machine 79, the washing water As described above, the removal of impurities and the supply of bath water sterilized with various fungi can be supplied through the water purification unit 47, and the same effect as in the third embodiment can be expected. Therefore, in this embodiment, it can be utilized also for the washing machine 79 which does not have a water supply pump means, and has the advantage which can anticipate the improvement of water saving and a washing | cleaning effect. On the other hand, in order to stop the water supply pump 80 in the present embodiment, the power cord 82 can be removed from the outlet. However, for example, an on / off switch or a timer switch can be provided for various developments. .

  In addition, although each said embodiment demonstrated as a filtration apparatus applied to the washing machine, it is not restricted to this, For example, it can expand | deploy widely as a filtration apparatus for washing | cleaning apparatuses using water, such as a dishwasher. In addition, it has been stated that when thin cloth fabric is used as the filter medium, it can be effectively used by wrapping it in multiple layers, but this is not restrictive. For example, thick cloth fabric is expected to have a filtration function without being multilayered. If possible, a filter medium wound in a cylindrical shape may be used.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1,79 is a washing machine (washing equipment), 4 is a top cover, 7,43 are water supply ports, 8 is a water tap (water source), 11,38,39,42 are filtration devices, 14 is a filtration case, 15, 63 are inlets, 16, 62 are outlets, 19 is a case body, 20 is a cap, 23 and 33 are core members, 24 and 32 are filter media, 25, 34 and 40 are holding plates, 28 is a protrusion, 29 and 31 are concave portions, 44 and 80 are water supply pumps, 45 and 81 are water supply hoses (water supply paths), 46 is a water inlet, 47 is a water purification unit, 52 is a core member (electric cable), and 56 is sterilized. Device, 58 is a sterilization tank, 59 is an ultraviolet lamp, 71 is a water level sensor, 78 is a photocatalyst, and 82 is a power cord.

Claims (9)

In the filtration device provided in the water supply path for supplying water from an external water source to the cleaning device,
The filtration device
A container-like filtration case having a water inlet at one end and a water outlet at the other;
A core member that is accommodated in the filtration case and positioned between the inflow port and the outflow port, and has a plurality of through holes in a cylindrical peripheral wall;
A filter medium that is held by the core member and wound with a cloth fabric in a cylindrical shape,
A holding plate that is supported at one end of the core member so as to cover the filter medium, and has a surface that is perpendicular to the inflow direction of water from the inlet of the filtration case;
With a configuration comprising
A filtration apparatus for a cleaning device, wherein water from the inlet is received by the holding plate and then filtered through the water from the outer peripheral surface side to the center side of the filter medium.   2. The filtration device for a cleaning device according to claim 1, wherein projections extending radially from a center side into which water flows from an inlet of the filtration case are provided on the surface of the holding plate.   2. The filtration device for a cleaning device according to claim 1, wherein a concave portion for receiving water from an inlet of the filtration case is formed on a surface of the holding plate.   2. The filtering device for a cleaning device according to claim 1, wherein a filter medium obtained by winding a cloth fabric in a cylindrical shape is accommodated and held in an internal space of the cylindrical core member. A water supply pump provided between the cleaning device and a water storage source as an external water source;
A filtration device provided in a water supply path for supplying water from a water storage source to a cleaning device by the water supply pump;
A sterilization device that is connected to the filtration device so as to be able to pass water, irradiates the water in the passing water with ultraviolet rays, and has a sterilizing action.
The filtration device
A container-like filtration case having a water inlet at one end and a water outlet at the other;
A core member that is accommodated in the filtration case and positioned between the inflow port and the outflow port, and has a plurality of through holes in a cylindrical peripheral wall;
A filter medium that is held by the core member and wound with a cloth fabric in a cylindrical shape,
A holding plate that is supported at one end of the core member so as to cover the filter medium, and has a surface that is perpendicular to the inflow direction of water from the inlet of the filtration case;
With a configuration comprising
A filtration apparatus for a cleaning device, wherein water from the inlet is received by the holding plate and then filtered through the water from the outer peripheral surface side to the center side of the filter medium.   The sterilization apparatus is configured to include an ultraviolet lamp in a sterilization tank capable of passing water through the filtration apparatus, and the ultraviolet lamp is electrically connected to a control circuit included in the cleaning device so that the operation of the ultraviolet lamp can be controlled. 6. The filtering device for a cleaning device according to claim 5, wherein the filtering device is a cleaning device.   The sterilization tank is provided with a water level sensor that can detect the upper water level in the tank, and is electrically connected to the control circuit of the cleaning device, and the operation of the ultraviolet lamp based on the water level detection signal of the water level sensor. The filtering device for a cleaning device according to claim 6, wherein the filter is controllable.   The filtration device for a cleaning device according to any one of claims 5 to 7, wherein a drainage pipe is provided at a lower portion of the filtration device and the sterilization device.   6. The filtration device for a cleaning device according to claim 5, wherein the water supply pump is disposed in the water supply path, is connected to an external power source together with the sterilization device, and can be operated independently.

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