JPH1057271A - Portable toilet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable toilet which can have an extended life and inhibit temperature rises without being deteriorated in strength by the fermentation environment of high-temperature ferments, can maintain a clean feel without being discolored by clinging excrement, etc., and is lightweight and low-cost. SOLUTION: This portable toilet has a base 3 with an inner base 3A enclosing powders of a plant constituent and aerobic ferments, a toilet seat 2 with an upper opening 2A on which the hip rests, and a toilet lid 5 opening and closing the upper opening 2A of the toilet seat 2, the toilet seat 2 having a cover 2a formed by blow molding and foam 2b that foams inside the cover 2a to fill and fuse to the cover 2a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable toilet having a container for receiving excrement and disassembling the excrement in the container.

[0002]

2. Description of the Related Art As a prior art of a toilet for treating this kind of excrement, there is a technique disclosed in Japanese Patent Publication No. 2-48320.

[0003] That is, the technique disclosed in the above-mentioned gazette is based on a human waste inlet provided with a human waste introduction port, a human waste intake port dispersed at a position arbitrarily away from the human waste introduction port, and an appropriate switching means provided inside. In the storage tank, an intake port connected to a blower and an exhaust port connected to an exhaust fan are provided, and a heater is provided at an appropriate position of an air supply path leading to the air supply port and an appropriate place in the night soil storage tank. The present invention relates to a human waste separation apparatus for controlling the temperature of human waste in a tank by setting the temperature of the human waste at or near 50 degrees as a set temperature.

[0004] The human waste decomposition apparatus thus constructed is capable of decomposing human waste by improving the fermentation environment of high-temperature fermentative bacteria.

[0005]

The above-mentioned conventional human waste disintegrating apparatus is disposed below a toilet in an individual house, and is large in size and cannot be used easily.

However, portable toilets for storing excrement of infants, elderly people, and persons requiring care do not have a concept of treating excrement in the portable toilet.

[0007] A general portable toilet is provided with a polybucket-like toilet tank under the toilet seat where the buttocks are placed, and after use (after excretion).
It is necessary to remove the toilet tub and dispose of the excrement in Haki and wash the toilet tub, which makes the treatment after excretion cumbersome and has a hygienic problem.

[0008] In particular, when a paper bucket is used to store the excrement of a portable toilet, the paper bucket containing the excretion needs to be disposed of as combustible garbage. The practice of putting them in a deodorant bag for a few days and disposing them at the time of collection of garbage means that there is resistance in storing the garbage in the home until the garbage is removed as garbage from the home, and there is a feeling of filth. there were.

Therefore, there is a need for a portable toilet that can treat excrement and does not emit odor.

[0010] Portable toilets for storing excrement of infants, the elderly, and persons requiring care may be directly used by infants, the elderly, and persons requiring care. Need to be easy to handle.

However, a heater is provided at an appropriate position in the night soil storage tank, and the heater controls the temperature of the night soil in the night soil storage tank at 50 ° C. or near the set temperature, so that the temperature of the toilet seat is also low. There is a possibility that the temperature may rise to about 50 degrees, and it is necessary to use wood having low thermal conductivity as the material, and the apparatus has to be expensive. Also,
The wood was discolored due to the attachment of excrement, and even when cleaned, it felt dirty. In addition, strength deteriorates by fermentation environment of high temperature fermentation bacteria,
Its life could not be extended.

Further, when the toilet seat is formed by injection molding of a synthetic resin, the weight becomes heavy and there is a problem in practicality.

[0013] Therefore, the present invention provides a high-temperature fermentative bacterium that can be used for a long time without deteriorating the fermentation environment, suppress the temperature rise, and clean without discoloration due to the attachment of excrement. It is an object of the present invention to provide a lightweight and inexpensive portable toilet that can maintain a sense of comfort.

[0014]

A portable toilet according to claim 1 comprises a base for accommodating a fine powder of plant constituents and an aerobic fermentation bacterium, a toilet seat having an upper opening on which a buttocks are placed, and an upper part of the toilet seat. The toilet seat includes a toilet lid that opens and closes an opening, and the toilet seat includes a cover formed by blow molding, and a foam that is foamed in the cover and filled in the cover.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a portable toilet according to the present invention will be described below.

FIG. 1 is a perspective view showing the entire portable toilet according to the embodiment of the present invention, and FIG. 2 is a plan view of the portable toilet according to the embodiment of the present invention with the toilet lid opened, FIG. 3 is a side view of the portable toilet of the embodiment of the present invention with the toilet lid opened, and FIG. 4 is a cross-sectional view of the portable toilet of the embodiment of the present invention as viewed from the side.
FIG. 5 is a perspective view of the toilet seat of the portable toilet according to the embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along section line XX of FIG.

In FIG. 1, the toilet seat 2 has an upper opening 2A on which the buttocks are placed and a compost outlet 2B. The base 3 serves as an overall base, bears the entire mechanical configuration, and includes an inner base 3A serving as a stirring tank and an outer base 3B serving as a design cover thereof. The toilet seat 2 is the inner base 3 of the base 3
A is disposed at the upper end of A. Upper opening 2A of toilet seat 2
Is formed in a size that allows urination and defecation with the buttocks on it. In addition, the weight of the human body is dispersed around the periphery and is added to the inner base 3A. The toilet lid 5 is pivotally supported by the toilet seat 2 and can open and close the upper opening 2A. An armrest 6 is provided on the inner base 3A. This armrest 6 can be used as a support for the body and also as a guide for the buttocks. The armrest 6 is an armrest 8 formed in a substantially U-shape when viewed from a plane formed by coating a metal core material with a synthetic resin.
And an upper end connected to a metal core material of the armrest 8 and two lower right and left supporting portions connected to the upper end of the inner base 3A. The armrest 8 formed in a substantially U-shape has left and right left armrest sides 8a and right armrest sides 8c having ends.
And the back side 8b between them. Further, the back side 8b located at the substantially central portion restricts the rotation of the toilet lid 5. The rotation of the toilet lid 5 by this is usually about 100 to 130 degrees from the state where the upper opening 2A of the toilet seat 2 is closed. The base cover 3C covers the compost outlet cover 7 and the compost outlet 2B, the lower front surface of which engages the toilet seat 2 between the upper opening 2A and the compost outlet 2B, and the other lower peripheral surface is outer. It is engaged with the base 3B.

An armrest 6 is attached to the inner base 3A. This armrest 6 can be used as a support for the body and also as a guide for the buttocks. Further, it has a function of guiding the toilet seat 2 so that it can be placed at a fixed position on the upper surface of the base 3 on the inner base 3A side. That is, when the toilet seat 2 is placed on the upper surface of the base 3, the positions of both sides and the rear are determined according to the armrests 6, and the toilet seat 2 is moved to the upper surface of the base 3.
At a fixed position on the upper surface of the base 3. Crushed chaff,
A mixture of wood debris and an aerobic high-temperature fermentation bacterium is mixed and agitated with excrement, and a compost outlet lid 7 that is opened when taking out compost that has become compost is fitted when closing the compost outlet 2B. , And a shape for specifying the fitting position. In addition, the main body 1 in the present embodiment
Is composed of a toilet seat 2 having an upper opening 2A on which the buttocks are placed, and a base 3 having an inner base 3A serving as a stirring tank for accommodating the fine powder of plant constituents and aerobic fermentative bacteria.

Here, the superb blow molding of the toilet seat 2 and the toilet lid 5 will be described in detail.

The toilet seat 5 is formed of a coating 5a formed by blow molding, and a foam 5b which is foamed in the coating 5a and filled and fused in the coating 5a. That is, the coating 5a is blow-molded with PP (polypropylene) in a mold having the shape of the predetermined toilet seat 5, and further, bead-like PP and PS (polystyrene) are formed in the mold having the shape of the predetermined toilet seat 5. A) a foam 5b
And the inner surface of the coating 5a and the foam 5b are fused under a predetermined temperature condition.

The toilet lid 2 is formed of a coating 2a formed by blow molding, and a foam 2b which is foamed in the coating 2a and filled and fused in the coating 2a. That is, the cover 2a is blow-molded with PP or the like in a mold having the shape of the predetermined toilet lid 2, and further has a foaming property of PP and PS in the mold having the predetermined shape of the toilet lid 2. One or more materials are filled as a foam 2b, and the inner surface of the coating 2a and the foam 2b are fused. Note that since no special load is applied to the toilet lid 2, it may be formed by blow molding.

The toilet seat 2 and the toilet lid 5 of this embodiment are formed by super blow molding, and a magnet fitting recess 5A is formed on the lower surface of the lower part of the toilet lid 5 in the vicinity of the lower end thereof. The permanent magnet 5B is provided by a synthetic resin adhesive. Similarly, a switch fitting recess 2D is formed on the lower surface of the seat 2 at a position opposite to the permanent magnet 5B in a middle portion between the upper opening 2A and the compost outlet 2B, and a reed switch 2E is formed there. Are provided by a synthetic resin adhesive. The reed switch 2E is a toilet lid 5
Is closed when the permanent magnet 5B is approaching, that is, when the toilet lid 5 is closed, and is opened when the permanent magnet 5B of the toilet lid 5 is separated, that is, when the toilet lid 5 is open. Becomes This reed switch 2E is the toilet lid switch of the present embodiment. In addition, a compost takeout switch (not shown) of the present embodiment, which is opened when the compost takeout cover 7 is opened, is provided in the compost takeout opening 2B of the toilet seat 2.

The reed switch 2E, which is the toilet lid switch of this embodiment, and the compost take-out switch of the compost take-out opening lid 7, which is opened and closed about once a month and takes out about 5 liters of compost, are opened and closed. Thus, the electric operation of the stirrer 20 and the like is stopped, and the electric operation is continued by closing the electric operation.

The inner base 3A of the main body 1 has an opening wider than the upper opening 2A of the toilet seat 2. This inner base 3A
Are square ends 32 and 33, with U
It is a substantially rectangular parallelepiped box-shaped container having a processing section 31 having a letter-like shape, and the whole of which is basically provided with an upper opening. Processing unit 3
A stirrer 20 pivotally supported on both sides is disposed at a substantially central portion in the length direction between the two end portions 32 and 33 of the one. The stirrer 20 obtains a rotational force from the electric motor 11 via the gear 10 attached to the shaft 21 penetrating the processing unit 31 through the end 33. The stirrer 20 has two helical stirring elements 20a and a stirring element 20b whose helical direction is opposite to the stirring element 20a, and the stirring elements 20a and 20b are connected so as to be close to each other at the center. ing. The rotation of the shaft 21 causes the stirring elements 20a and 20b to rotate in the processing unit 31, and the stirring elements 20a and 20b
Is an operation of collecting in the center direction or dispersing from the center to both sides. Stirring element 20a, 2 of the present embodiment
Reference numeral 0b denotes a connection in which the spiral is connected in parallel with the shaft 21, and the connection is made in an arrangement in which the balance is uniform with respect to the rotation of the shaft 21 by 360 degrees. In addition, they are arranged so that a uniform load is applied to the rotation of the shaft 21. Therefore, the processing unit 31
Due to the rotational force applied to the shaft 21, the shaft 21 rotates,
The pair of stirring elements 20a and 20b rotate. In this rotation, the contact resistance is small due to the bearing,
It is easily rotatable.

Further, a heater (not shown) composed of a thermistor or the like is provided below the processing section 31, and heat generated by the heater is transmitted to the processing section 31.

A controller 9 is provided on the end 33 side of the inner base 3A into and from which the processing section 31 is inserted and removed. The controller 9 performs overall electrical control of the portable toilet of the present embodiment. The controller 9 is composed of a microcomputer, and inputs a signal of a temperature sensor for controlling the temperature of the processing unit 31 within a predetermined temperature range, a signal of a compost removal switch or a switch of a toilet lid to the input of the microcomputer. The microcomputer outputs a heater on / off signal. Similarly, the electric motor 1
1 outputs a forward rotation output of the motor that drives the motor forward and a reverse rotation output that drives the motor 1 in the reverse direction. The exhaust fan whose rotation is controlled by the controller 9 exhausts the air in the processing section 31 through the catalytic deodorizer. Further, similarly, the exhaust fan outputs a strong output and a weak output of the exhaust fan that rotate the exhaust fan in a specific direction at high speed (high speed rotation) and at low speed (low speed rotation). The electric motor controlled to rotate at a constant speed by the controller 9 applies a rotational force to the shaft 21 of the processing section 31 after a predetermined deceleration.

The main body 1, which forms substantially the entire portable toilet of the present embodiment, has a toilet seat 2 having an upper opening 2A, serves as a base of the whole, and has an armrest 6 attached thereto, and a fine powder of plant constituents and aerobic It comprises a base 3 comprising an inner base 3A serving as a stirring tank for accommodating fermentation bacteria and an outer base 3B serving as a decorative cover thereof, and a toilet lid 5 for opening and closing the upper opening 2A of the toilet seat 2. However, the main body 1 for implementing the present invention can also integrate the toilet seat 2 and the outer base 3B.

Next, the operation of the portable toilet having the above-described configuration according to the present embodiment will be described.

First, a mixture of crushed rice husks, wood chips, etc. and aerobic high-temperature fermentation bacteria is put into a processing section 31 to a height of 50 to 60%. In the present embodiment, a mixture of crushed rice hulls, wood chips, etc. and an aerobic fermentation bacterium is added.However, in the case of carrying out the present invention, fine powder of plant constituents and aerobic fermentation bacterium may be used. . The aerobic fermenting bacteria used in the present embodiment used were aerobic high-temperature fermenting bacteria. However, the present invention is not limited to aerobic high-temperature fermentation bacteria, but may be any aerobic fermentation bacteria.

Since the temperature at which the aerobic high-temperature fermentation bacterium used in the present embodiment can favorably operate is in the range of 45 to 65 ° C., the temperature in the processing section 31 is controlled by the heater as the heating means. Within the range of 50 to 60 ° C., under the adjusted temperature conditions, the aerobic fermentation bacteria and the crushed rice hulls, wood chips, etc. in the processing unit 31 are mixed and stirred at a rate of about once every eight hours by the stirrer 20. I do.

At a predetermined time interval, the exhaust fan is driven in a weak state, and the air in the main body 1 is forcibly exhausted from the exhaust port of the base 3 through the catalytic deodorizer.
The reason why the exhaust fan is always driven in a weak state is as follows.
The supply of oxygen and the removal of moisture to the aerobic fermentation bacteria during the decomposition treatment of the effluent, and the temperature of the toilet seat 2 is hardly affected by the temperature range of 50 to 60 ° C. in the processing unit 31, and the inside of the main body 1 is reduced to 35
This is for setting the atmosphere to about 40 ° C.

In this state, when sitting on the toilet seat 2 of the main body 1 and excreting through the upper opening 2A of the toilet seat 2, the excrement is
The stirrer 20 under the temperature range of 50-60 ° C.
Thus, rice husks, wood chips and the like are mixed and agitated with the aerobic fermentation bacteria. When the excrement is mixed and stirred with the rice husks, wood chips, etc. and the aerobic fermentation bacteria by the stirrer 20, the rice husks, wood chips, etc. are fermented and decomposed by the microorganisms and the aerobic fermentation bacteria by the aerobic high temperature fermentation bacteria which are actively activated, and the treatment is performed. Crushed rice hulls in part 31,
The wood chips become compost, or compost.

The fermentation decomposition of the excrement by the aerobic fermentation bacteria during this time also kills Escherichia coli and other harmful parasite eggs at high temperatures. Further, even if rice husks, wood chips, and the like in the processing unit 31 are fertilized as fertilizers, the generation of offensive odors and the germs are not propagated.

When the compost in the processing section 31 is to be fertilized or discarded as fertilizer, the compost outlet cover 7 is opened, and the compost is taken out of the processing section 31.

As described above, the portable toilet according to the present embodiment comprises the base 3 having the inner base 3A for accommodating the fine powder of the plant constituents and the aerobic fermentation bacteria, and the toilet seat 2 having the upper opening 2A on which the buttocks are placed. And a toilet lid 5 for opening and closing the upper opening 2A of the toilet seat 2. The toilet seat 2 has a coating 2a formed by blow molding, foaming in the coating 2a, and foaming formed by filling and fusing in the coating 2a. Body 2b.

Therefore, the coating 2a can be easily formed by blow molding by the technique of super blow molding, and furthermore, the coating 2a is foamed in the coating 2a built in the mold used for the blow molding, and is filled and fused. Foam 2
b, the toilet seat 2 can be easily manufactured,
It is inexpensive and can be lighter in weight than wood, solid synthetic resin and the like. In addition, the temperature rise on the surface of the toilet seat can be suppressed by the heat insulating effect of the gas bubbles of the foam 2b filled and fused.
And, even in a fermentation environment of a high-temperature fermentation bacterium due to the stability of the synthetic resin, its life can be extended without deterioration in strength. In addition, a clean feeling can be maintained without discoloration due to the attachment of excrement and the like, and discoloration does not occur even after repeated cleaning.

Further, in the toilet seat 2 of the present embodiment, the coating 2a is formed by blow molding by the super blow molding technique, and the foam 2b is formed in the coating 2a built in the mold used for the blow molding. Since foaming is performed and filling and fusion are performed, a mold for performing secondary processing is not required, so that a molding cycle can be shortened and manufacturing costs can be reduced. Also,
Since the foam 2b is foamed and filled and fused in the cover 2a, the foam 2b and the cover 2a are integrated, and the rigidity of the toilet seat 2 is increased. In addition, since a plurality of components are not combined to obtain a heat insulating effect due to the rigidity and the cavity of the toilet seat 2, the number of components is reduced. Since the cover 2a of the toilet lid 2 is made of PP and the foam 2b is made of at least one kind of foamable material of PP and PS, it can be recycled. Of course, other components can also be PP.

The magnet fitting recess 5A formed on the lower surface of the toilet lid 5 in the vicinity of the shaft support of the present embodiment, the upper opening 2 of the toilet seat 2
Since the toilet lid 5 and the toilet seat 2 are formed by super-blow molding, the switch fitting concave portion 2D and the like formed at the lower part around the periphery of A can be easily molded into any shape. Further, the permanent magnet 5B can be bonded to the magnet fitting recess 5A, or the permanent magnet 5B can be embedded in the magnet fitting recess 5A. Since 5A is open to the lower side, water droplets do not enter or accumulate therein.

Since it is desirable to dispose the reed switch 2E in the switch fitting recess 2D so as to reduce the separation distance from the permanent magnet 5B, the influence of the thickness of the switch fitting recess 2D is minimized. After the position of the reed switch 2E is arranged in the switch fitting recess 2D, a synthetic resin is poured between the switch fitting recess 2D and the reed switch 2E to be integrated, thereby minimizing the separation distance from the permanent magnet 5B. Can be set. In addition, analogy, switch fitting recess 2
Even if there is a gap between D and the reed switch 2E, since the switch fitting concave portion 2D is opened to the lower side, water drops do not enter or accumulate there. Can be enhanced. In particular, if human waste or the like is applied to the connection portion between the switch and the lead wire, the connection portion may be corroded. If the opening of the switch fitting concave portion 2D or the like is turned upward, a waterproof sheet or a waterproof cover is required. In the embodiment, a waterproof sheet, a waterproof cover, and the like are not required, and the reliability of operation can be improved. Also, the appearance and the ease of cleaning are improved.

In the present embodiment, the formation of the switch fitting recess 2D by super blow molding has been described. However, it is natural that the groove for burying the lead wire of the reed switch 2E can be formed simultaneously. According to this, the appearance of the wiring is improved, and there is no possibility that the wiring is cut off during cleaning by fixing the wiring.

Although the reed switch 2E is used here as a switch, the present invention is not limited to the reed switch but includes a switch which reacts to a magnetic field such as a Hall element. , Other proximity switches can be used. In the present embodiment, the toilet seat 2 and the toilet lid 5 are formed by super-blow molding in which a foam material is embedded in a blow-molded coating, and have high mechanical strength. In the case where the toilet seat 2 is implemented, the toilet seat 2 may be formed of a foam 2b which is foamed in the coating 2a formed after blow molding and is filled and fused in the coating 2a as long as the mechanical strength is high. .

In this embodiment, the toilet seat 2 is formed with a switch fitting recess 2D having a downwardly opened mounting space for mounting the switch by super blow molding, and the switch is fixed to the switch fitting recess 2D. In addition, since the toilet seat 2 is formed by blow molding, any shape can be easily formed. Even if there is a gap between the switch fitting recess 2D and the switch, since the switch fitting recess 2D is open to the lower side, water drops do not enter or accumulate there, so that the switch operation is performed. Reliability can be increased. In particular, if human waste or the like is applied to the connection portion between the switch and the lead wire, the lead wire or the connection portion may be corroded. However, a waterproof sheet or a waterproof cover or the like becomes unnecessary, and the reliability of operation can be improved. . Also, the appearance and the ease of cleaning are improved.

[0043]

As described above, the portable toilet according to the first aspect of the present invention comprises a base for accommodating the fine powder of plant constituents and aerobic fermentative bacteria, a toilet seat having an upper opening in which the buttocks are placed, and an upper part of the toilet seat. And a toilet lid that opens and closes the opening, and
The toilet seat has a coating formed by blow molding, and a foam that is foamed in the coating and filled and fused in the coating.

Therefore, a toilet seat can be easily manufactured, and it can be inexpensive and light in weight as compared with wood, solid synthetic resin and the like. In addition, the temperature rise on the toilet seat surface can be suppressed by the heat insulating effect of the gas bubbles of the filled foam. And, even in a fermentation environment of a high-temperature fermentation bacterium due to the stability of the synthetic resin, its life can be extended without deterioration in strength. In addition, a clean feeling can be maintained without discoloration due to the attachment of excrement and the like, and discoloration does not occur even after repeated cleaning.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire portable toilet according to an embodiment of the present invention.

FIG. 2 is a plan view of the portable toilet according to the embodiment of the present invention in a state where a toilet lid is opened, as viewed from above.

FIG. 3 is a side view of the portable toilet according to the embodiment of the present invention with the toilet lid opened.

FIG. 4 is a cross-sectional view of the portable toilet according to the embodiment of the present invention as viewed from a side.

FIG. 5 is a perspective view of a toilet seat of the portable toilet according to the embodiment of the present invention.

FIG. 6 is a sectional view taken along section line XX in FIG. 5;

[Explanation of symbols]

 2 toilet seat 2A upper opening 2a coating 2b foam 3 base 3A inner base 3B outer base 5 toilet lid

Claims (1)

[Claims] 1. A portable toilet comprising: a base for accommodating fine powder of plant constituents and aerobic fermentation bacteria; a toilet seat on which a buttocks are placed; and a toilet lid for opening and closing an upper opening of the toilet seat. A portable toilet, comprising: a cover formed by blow molding; and a foam foamed in the cover and filled in the cover.