JPH09225181A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent de- or discoloration, the yellowing of silk and the oxidation of an organic fiber surface working material, etc., by residual free chlorine by disposing the shaped body of a reducing agent against free chlorine contained in water to a water supply member and supplying water through the surface of the shaped body to a washing tank. SOLUTION: The shaped body 17 for which calcium sulphite of a reducing agent is solidified by a binder to be slowly dissolved in water is disposed in a water supply port 18. Then, by the water supply member 19 provided with a detergent case 16, water is supplied through the surface of the shaped body 17 to the washing tank 20. By the water supply, the binding agent of the shaped body 17 is slowly dissolved and the fine particles of the calcium sulphite are eluted and dispersed in city water. The dispersed calcium sulphite performs the redox reaction with the residual free chlorine in the city water and removes the free chlorine. Thus, the de- or discoloration or the like by the oxidation action of the free chlorine is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine capable of removing free chlorine contained in water or washing liquid supplied to a washing tub.

[0002]

2. Description of the Related Art Conventionally, a technique for removing residual free chlorine in tap water supplied to a washing machine is disclosed in Japanese Patent Laid-Open No. Hei 02-136170.
JP, JP 06-154474, JP, 06
Those described in Japanese Patent Publication No. 238092 and the like are known.

FIG. 5 is disclosed in JP-A-02-136170, in which an internal hose 3 is connected to a water supply valve 2 to which a water supply hose 1 is connected, and a water supply path switching section 4 is connected to the internal hose 3. Then, the tap water from which residual free chlorine has been removed is supplied from the water supply port 6 into the water tank through the residual free chlorine removing device 5 having a cartridge (not shown) filled with the free chlorine removing material by the water supply path switching unit 4. It is configured to be possible.

FIG. 6 is disclosed in Japanese Unexamined Patent Publication No. 06-154474, in which a water supply hose 1 is connected to a double water supply valve 7 and one of the double water supply valves 7 is filled with a free chlorine removing material 8. The residual free chlorine removing device 10 having the built-in cartridge 9 is connected, and the inflow port 1 of the residual free chlorine removing device 10 is connected.
The tap water from 1 is discharged from the outlet 12 through the free chlorine removing material 8, and the tap water from which the residual free chlorine is removed can be supplied from the water supply port 6 into the water tank.

FIG. 7 is disclosed in Japanese Patent Laid-Open No. 06-238092, in which a cartridge 13 filled with a free chlorine removing agent 8 is provided in a water supply path for supplying water through an internal hose 3 connected to a water supply valve 2. The filter case 14 to be housed is detachably attached in a detachable manner, and when the filter case 14 is attached, tap water from which residual free chlorine has been removed is supplied to the water tank.

[0006]

[Patent Document 1] Japanese Patent Application Laid-Open No. 02-1361
In the configuration disclosed in Japanese Patent Laid-Open No. 70-70, and Japanese Patent Application Laid-Open No. 06-154474, in order to supply tap water from which residual free chlorine has been removed into the water tank, all the water is filled by completely switching the water supply route. It is necessary to pass water through the free chlorine removing material and to add water pressure to pass through the densely packed free chlorine removing material.

Further, in the cartridge system using a reducing agent, the reducing agent is mainly composed of powdery calcium sulfite having a reducing action as a main component and granulated with a poorly water-soluble ethyl cellulose or the like as a binder (binder). Had been used. As a result, the principle of the reaction mechanism was that residual free chlorine was brought into contact with and reacted with the surface of the granular particles of calcium sulfite.

[0008] Further, in the structure filled with the granular material, a portion that easily passes through water and a portion that does not easily pass through are likely to be generated, and when used in a state where water pressure is applied, the portion that easily passes through water is more than other portions. Was consumed to react with the remaining free chlorine, and a short path was generated while leaving a large amount of the active ingredient.

In the cartridge using activated carbon, the flow rate is reduced due to clogging by foreign substances contained in tap water, and the residual free chlorine is gradually reduced because the flow rate in the activated carbon is increased to exceed the adsorption capacity. It leaks out and its life is over.

In any case, since it is impossible for the user to know the life from the outside, it is also required to predict and inform the life from the number of times of use.

Next, in the structure described in Japanese Patent Laid-Open No. 06-238092, in order to supply tap water from which residual free chlorine has been removed into the water tank, at the portion where the filter case containing the cartridge is mounted, In order to remove residual free chlorine contained in tap water, a sparingly soluble reducing agent is required to have high contact efficiency (wide contact area) with tap water. For this reason, the contact area gradually decreases during use, and similarly, it is impossible for the user to know the life from the outside. Therefore, it is also required to predict and inform the life from the number of times of use and the like.

In addition, it has been impossible to supply a predetermined amount of reducing agent into tap water over each process from the washing process to the rinsing process by using the solubilizing reducing agent. In that case, in order to cause the color pattern (dye) to change color due to the reducing action, it is required to control the elution to a substantially predetermined amount.

The present invention disperses or dissolves a predetermined amount of a reducing agent in tap water or a washing liquid to completely and quickly carry out an oxidation-reduction reaction to remove the reducing agent and residual free chlorine. The purpose is to prevent the discoloration and fading of colored patterns (dye), the yellowing of silk, and the oxidation of various organic fiber surface finishing materials due to the oxidation of residual free chlorine contained in water.

The present invention solves the above problems by eluting a preset substantially constant amount of a reducing agent in a water supply liquid,
On the way to the water supply path after the part where the reducing agent is arranged and in the water tank,
The purpose is to remove residual free chlorine completely and quickly by causing an oxidation-reduction reaction with the residual free chlorine contained in the supplied tap water, and to identify the time to replace or replenish the reducing agent. There is.

[0015]

In the washing machine of the present invention, a compact of a reducing agent for reducing free chlorine contained in water is disposed on a water supply member, and the washing tub is passed through the surface of the compact. It is configured to supply water inward.

As a result, unlike the conventional example, there is no need to completely switch the water supply path or to add water pressure to the cartridge, and at the portion where the filter case is mounted,
In order to remove residual free chlorine contained in tap water, high contact efficiency with tap water is not required, and a reducing agent can be eluted by eluting a preset approximately constant amount of reducing agent in the water supply liquid. Residual free chlorine can be completely and quickly removed by causing an oxidation-reduction reaction with the residual free chlorine contained in the supplied tap water in the water supply route and in the water tank after the location where it is installed. The user can easily know the replacement or replenishment time of the reducing agent.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION In the invention described in claim 1 of the present invention, a molded body of a reducing agent for reducing free chlorine contained in water is arranged in a water supply member, and is passed through the surface of the molded body. It is configured to supply water to the washing tub, and by elution of a substantially constant amount of reducing agent in the water supply liquid, the residual free chlorine contained in the supplied tap water and the redox reaction are caused to leave a residue. It is possible to remove free chlorine, and prevent discoloration and fading of colored patterns (dye), yellowing of silk and oxidation of various organic fiber surface finishing materials due to the oxidation of residual free chlorine contained in tap water. You can Washing machine.

According to a second aspect of the present invention, a detergent case is provided in the water supply path of the water supply member, and a compact of a reducing agent for reducing free chlorine contained in water is arranged in the detergent case.
It is configured to supply water into the washing tub via the surface of the molded body, and when tap water passes through the detergent case, a certain amount of the reducing agent is eluted and contained in the supplied tap water. Residual free chlorine can be removed by causing an oxidation-reduction reaction with the residual free chlorine that is generated, and the discoloration and fading of colored patterns (dyes) and yellowing of silk due to the oxidation of residual free chlorine contained in tap water. It is possible to prevent oxidation of various organic fiber surface finish materials, and to check the wear state of the molded product when putting the detergent in the detergent case, and to inform the user of the replacement time. it can.

According to a third aspect of the present invention, in addition to the second aspect of the present invention, a storage case is provided in the detergent case for storing the reducing agent molding, and the inside and outside of the storage case are provided. It has a communicating hole, and when tap water passes through the detergent case, a certain amount of reducing agent elutes through the hole of the storage case, and residual free chlorine and oxidation contained in tap water By causing a reduction reaction, residual free chlorine can be removed, and when the molded product is attached to or detached from the detergent case, the molded product with a softened surface must not be touched directly by hand. it can.

According to a fourth aspect of the present invention, in the above-mentioned third aspect of the present invention, the molded body in the storage case can be exposed from the outside through the hole or the transparent portion of the detergent case. Each time tap water passes through the member, the molded body of the reducing agent elutes out in an almost constant amount, and the state where it is gradually consumed and disappears can be seen from the outside through the hole or transparent part of the detergent case. It is possible to indicate the time to replace the molded body.

According to a fifth aspect of the present invention, in the invention according to the third or fourth aspect, the color of the molded body and the color of the storage case are different, and the washing machine is installed in a dark place. However, when the molded product is gradually worn out and it is time to replace it, the user can easily see that the molded product is no longer worn.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

(Embodiment 1) As shown in FIG. 1, a water supply hose 1 has one end connected to a water faucet (not shown) and the other end screwed into a water supply valve 2. The outlet side of the water supply valve 2 communicates with the water supply nozzle 15 via the internal hose 3. Below the water supply nozzle 15, a drawer-like detergent case 16 is arranged. The molded body 17 has calcium sulfite, which is a reducing agent, as a main component, is solidified with a binder that is slowly soluble in water, and is disposed at the water supply port 18. The detergent case 16 and the water supply port 7 are communicated with each other to form a water supply member 19, and water is supplied into the washing tub 20 via the surface of the molded body 17.

In the above structure, when the water supply valve 2 is opened, tap water is supplied to the internal hose 3, the water supply nozzle 15, and the detergent case 16.
And the reducing agent is supplied to the washing tub 20 from the water supply port 18 through the surface of the molded body 17. At this time, the binder of the molded body 17 is gradually dissolved and the fine particles of calcium sulfite are dispersedly released into the tap water, and are supplied to the washing tub 20 through the water supply port 18 together with the tap water.

The calcium sulfite fine particles dispersed and released in the tap water are removed from the surface of the molded body 17 at the water supply port 18 and the washing tub 20 by redox reaction with the residual free chlorine having an oxidizing effect in the tap water. can do. Therefore, it is possible to prevent discoloration and discoloration of a color pattern (dye), yellowing of silk, and oxidation of various organic fiber surface processing materials due to the oxidizing action of residual free chlorine contained in tap water. The replacement time of the reducing agent can be easily determined by checking whether the molded body 17 remains.

Example 2 As shown in FIG. 2, a molded body 17 having a reducing agent, calcium sulfite as a main component, and a water-soluble binder, was attached to the front side of the interior of a detergent case 16 as shown in FIG. The water is supplied into the washing tub 20 through the surface of the molded body 17. Other configurations are the same as those in the first embodiment.

In the above structure, when the water supply valve 2 is opened, tap water is supplied from the water supply nozzle 15 to the molded product 17 of the reducing agent mounted in the detergent case 16 in a shower shape through the internal hose 3. At this time, the binder of the molded body 17 is gradually dissolved and the fine particles of calcium sulfite are dispersedly released into the tap water, and are supplied to the washing tub 20 through the water supply port 18 together with the tap water.

The calcium sulfite fine particles dispersed and released in the tap water are removed in the detergent case 16, the water supply port 18 and the washing tub 20 by redox reaction with the residual free chlorine having an oxidizing effect in the tap water. be able to. Therefore, it is possible to prevent discoloration and discoloration of a color pattern (dye), yellowing of silk, and oxidation of various organic fiber surface processing materials due to the oxidizing action of residual free chlorine contained in tap water. Further, the replacement timing of the reducing agent can be easily determined by checking the consumption state of the molded body 17 when the detergent is put into the detergent case 16.

(Embodiment 3) As shown in FIG. 3, the compact 17 of the reducing agent is housed in a storage case 21, and the storage case 21 is arranged in a detergent case 22. As shown in FIG. 4, the storage case 21 has a hole 23 for communicating the inside and the outside.
Is provided. Further, the detergent case 22 is provided with a transparent window 24 so that the molded body 17 in the storage case 21 can be seen from the outside through the transparent window 24 of the detergent case 22. Further, the configuration of the molded body 17 is originally white, and the color of the storage case 21 is blue. The other configurations are the same as those in the second embodiment.

In the above structure, the tap water supplied from the water supply nozzle 15 via the internal hose 3 is stored in the storage case 2.
When passing through the surface of the molded body 17 through the communicating hole 23 of 1, the binder is gradually dissolved from the surface of the molded body 17 and the fine particles of calcium sulfite are dispersed and released into tap water.
As a result, free chlorine can be removed by an oxidation-reduction reaction with residual free chlorine having an oxidizing effect in tap water.

When the binder is gradually dissolved from the surface of the molded body 17 and fine particles of calcium sulfite are dispersed and released into tap water, the molded body 17 is gradually consumed. This consumption state can be seen through the transparent window 24 provided in the detergent case 22 and the hole 23 provided in the storage case 21, and the replacement time can be easily confirmed.

At this time, the molded body 17 in the detergent case 22
The consumption state is that the light entering the room through the transparent window 24 is reflected by the surface of the storage case 21 and the surface of the molded body 17 and can be visually recognized.
By making 1 and the molded body 17 different colors, it is possible to more easily recognize them. When replacing the storage case 21 without directly touching the molded body 17,
Can be replaced as a unit.

[0033]

As described above, according to the invention described in claim 1 of the present invention, a molded body of a reducing agent for reducing free chlorine contained in water is disposed on a water supply member, and the surface of the molded body is arranged. Since it is configured to supply water into the washing tub via the water, it is possible to elute an almost constant amount of reducing agent in the water supply liquid to cause redox reaction with residual free chlorine contained in the supplied tap water. Color residue (dye) that can remove residual free chlorine and is oxidized by residual free chlorine contained in tap water
It is possible to prevent discoloration and fading, yellowing of silk, and oxidation of various organic fiber surface finishing materials. In addition, unlike the conventional example, since it does not require a large contact area with water, it can be made compact and the reducing agent can be used almost 100% effectively. Not only can it be confirmed by checking the wear state of the molded product, but it can also be replaced easily.

According to the second aspect of the invention, a detergent case is provided in the water supply path of the water supply member, and a compact of a reducing agent for reducing free chlorine contained in water is provided in the detergent case. Since it is configured to supply water into the washing tub via the surface of the molded body, when the tap water passes through the detergent case, a certain amount of reducing agent is eluted and contained in the supplied tap water. Residual free chlorine can be removed by causing an oxidation-reduction reaction with the residual free chlorine that is generated, and the discoloration and fading of colored patterns (dyes) and yellowing of silk due to the oxidation of residual free chlorine contained in tap water. It is possible to prevent oxidation of various organic fiber surface finish materials, and to check the wear state of the molded product when putting the detergent into the detergent case, and to inform the user of the replacement time. it can.

According to the third aspect of the present invention, the detergent case is provided in the detergent case for accommodating the molded body of the reducing agent, and the accommodation case is provided with the hole for communicating the inside and outside. When tap water passes through the case, a certain amount of reducing agent elutes through the holes in the storage case, causing an oxidation-reduction reaction with the residual free chlorine contained in the supplied tap water. It is also possible to prevent the molded body having a softened surface from being directly touched when the molded body is attached to or detached from the detergent case.

Further, according to the invention of claim 4, since the molded body in the storage case can be exposed from the outside through the hole or the transparent portion of the detergent case, every time tap water passes through the water supply member. As a result, the reducing agent's molded body elutes out in a substantially constant amount, and the state in which it gradually wears out and disappears can be seen from the outside through the hole or transparent part of the detergent case.
It is possible to indicate to the user when the molded body should be replaced.

According to the invention described in claim 5, since the color of the molded body and the color of the storage case are different from each other, even when the washing machine is installed in a dark place, the molded body is gradually changed. When it is time to wear out and replace the molded product, the user can easily see that the molded product has run out.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a washing machine according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a washing machine according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a main part of a washing machine according to a third embodiment of the present invention.

FIG. 4 is a perspective view of a molded body stored in a storage case of the washing machine.

FIG. 5 is an exploded perspective view of a main part of an example of a conventional washing machine.

[FIG. 6] (a) An exploded perspective view of a main part of another example of a conventional washing machine (b) A sectional view of a residual free chlorine removing device of the washing machine

[FIG. 7] (a) An exploded perspective view of a main part of another example of a conventional washing machine (b) A partially cutaway perspective view of a cartridge of the washing machine

[Explanation of symbols]

 17 molded body (reducing agent) 19 water supply member 20 washing tub

Claims (5)

[Claims] 1. A washing machine in which a molded body of a reducing agent for reducing free chlorine contained in water is disposed in a water supply member and water is supplied into a washing tub via the surface of the molded body. 2. A detergent case is provided in the water supply path of the water supply member, and a compact of a reducing agent for reducing free chlorine contained in water is disposed in the detergent case, and washing is performed via the surface of the compact. A washing machine configured to supply water into the tub. 3. The washing machine according to claim 2, further comprising a storage case that is disposed in the detergent case and stores the molded body of the reducing agent, and the storage case is provided with a hole that communicates the inside and the outside. 4. The structure according to claim 3, wherein the molded body in the storage case can be exposed from the outside through a hole or a transparent portion of the detergent case.
The washing machine as described. 5. The washing machine according to claim 3, wherein the color of the molded article and the color of the storage case are different.