JPH09313401A - Portable toilet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively treat excrement and mimtuarize. SOLUTION: A portable toilet concerned is composed of a WC seat 2 having an upper opening 2a at which the hip of a user is put, a treatment vessel 4 whose side to the seat opening 2a is opened and bottom has an approx. U- section and which accommodates particulates of vegetable constituents and aerobic fermenting bacteria, and an agitating means 40 mounted on a shaft 41 on which a pair of screws 42, 43 are mounted perpendicularly to the bottom surface, wherein the screws are equipped with spirals directed oppositely and will rotate within the vessel 4. The length of the vessel 4 should range from 400 to 900mm, while the radius of the screws 42, 43 from 70 to 150mm, and the number of turns of the spiral of each screw is made between 2 and 5.

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 configured can decompose 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.

In a general portable toilet, a toilet bowl for a poly bucket is provided 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.

[0009] Therefore, an object of the present invention is to provide a portable toilet which can efficiently treat excrement and can be miniaturized.

[0010]

A portable toilet according to claim 1 has a toilet seat having an upper opening on which a buttocks is placed, an upper opening side of the toilet seat is opened, and a bottom is formed into a substantially U-shaped cross section. A processing container for accommodating the fine powder of the constituent body as a main material and a pair of screws forming spirals in opposite directions rotating in the processing container are arranged in a direction perpendicular to the bottom surface of the substantially U-shaped cross section. An agitating means attached to a shaft provided, the length of the processing container having the bottom portion formed in a substantially U-shaped cross section is 400 to 900 mm, and the radius of the pair of screws is 70 to 150 mm; The number of spiral turns of each of the pair of screws was set to 2 to 5 turns.

[0011]

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

FIG. 1 is a cross-sectional view of the structure of a portable toilet according to an embodiment of the present invention taken along the length of a shaft, and FIG. 2 is a shaft showing the structure of a portable toilet according to an embodiment of the present invention. It is a principal part sectional drawing cut | disconnected in the orthogonal direction.

In FIGS. 1 and 2, the toilet seat 2 has an upper opening 2a on which the buttocks are placed, the base 3 serves as a base of the whole, and has an armrest 3a. A main body 1 including a frame and a cover that form substantially the whole of the portable toilet according to the present embodiment includes a toilet seat 2 having an upper opening 2a, a toilet lid (not shown) that opens and closes the toilet seat 2, and an unillustrated frame and cover that serves as a base for the entire body. It is composed of a plate, and is further composed of a base portion 3 having a hand pushing portion 3b for pushing and pulling the armrest portion 3a and the main body 1 by rolling of the casters 3c. However, in the case of implementing the present invention, the body 1 can also be integrated with the toilet seat 2 and the base 3. 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 it and is added to the base 3. Base 3 of body 1
The armrest portion 3a disposed in the can be used as a support for the body,
It is also used as a buttocks guide. That is, toilet seat 2
When mounting on the upper surface of the base 3, the armrests 3a on both sides
The toilet seat 2 can be placed in a fixed position on the upper surface of the base portion 3 by rotating the support shaft around the support shaft.

The processing container 4 having the opening 31 facing the upper opening 2a of the toilet seat 2 of the base 3 is the upper opening 2 of the toilet seat 2.
The opening is wider than a. The processing container 4 is basically a container having an opening 31 at the top and a bottom formed in a substantially U-shaped cross section. At the lower part of the processing container 4, a stirring means 40, which is supported by bearings 45 on both sides, is arranged. The stirring means 40 obtains a rotational force from an electric motor (not shown) through a worm from a gear 46 attached to a shaft 41 protruding from one side of the processing container 4. The stirring means 40 has a pair of screws 42 and 43, and the rotation of the shaft 41 causes the screws 42 and 43 to move the spiral of the bottom of the processing container 4 in mutually opposite directions.

That is, the agitating means 40 attached to the shaft 41 arranged in a direction perpendicular to the bottom surface having a substantially U-shaped cross section,
It has a pair of screws 42 and 43 that form spirals in opposite directions that rotate in the processing container 4. A pair of screws 4 in which spirals are formed by strips in opposite directions.
According to the experiments conducted by the inventors, 2 and 43 are the ones in which the pair of screws 42 and 43 are arranged with a spiral winding number of 2 to 5 turns at a pitch suitable for practical use, and are suitable for excrement treatment. It was confirmed that it was optimal in terms of capacity, noise, ease of cleaning, weight, cost, etc.

Further, the screws 42, 4 of the present embodiment
The shafts 3 are connected in a balanced arrangement with respect to the rotation of the shaft 41 by 360 degrees, and are arranged so that a uniform load is applied to the rotation of the shaft 41. Therefore, in the processing container 4, the shaft 41 is rotated by the rotational force applied to the gear 46, and the pair of screws 42,
43 rotates. This rotation has a small contact resistance due to the bearing 45 and can be easily rotated. Therefore, by rotating the pair of screws 42 and 43, the fine powder of the plant constituent and the aerobic fermentative bacteria contained in the processing container 4 are moved so as to be collected between the pair of screws 42 and 43. Or vice versa
The pair of screws 42 and 43 act to disperse and move outward.

When the radius D of the pair of screws 42 and 43 is set to 70 to 150 mm, the pair of screws 4 forming spirals in directions opposite to each other that rotate in the processing container 4 are formed.
According to experiments conducted by the inventors, it has been confirmed that 2, 43 are optimal in terms of stirring ability, noise, ease of cleaning, weight, cost, etc. suitable for excrement treatment. That is, when the radii of the pair of screws 42 and 43 are smaller than 70 mm, the stirring ability suitable for excrement treatment decreases, and the excrement treatment becomes incomplete. In addition, the radius of the pair of screws 42, 43 is 1
If it is larger than 50 mm, the weight suitable for excrement treatment,
It is disadvantageous in terms of cost and the main body 1 becomes large in size, which is not practical.

When the length L is 400 to 900 mm, the processing container 4 whose bottom has a U-shaped cross section has a diameter 2D of the pair of screws 140 to 3.
By completely accommodating 00 mm and setting the depth H-2D from the opening 31 of the base 3 to about 100 mm or more, a person can easily touch the pair of screws 42, 43, or the pair of screws 42, 43. It is possible to keep a distance that does not touch the fine powder of the plant constituents housed in the treatment container 4 piled up by the above, and optionally the aerobic fermentative bacteria and excrement contained therein. Naturally, both the usability as the portable toilet of the present embodiment and the processing ability of excrement can be satisfied.

That is, the length L of the processing container 4 is 400 to 90.
0mm is the size of a portable toilet, and a pair of screws 4 that form spirals opposite each other.
It is determined by a kneading operation with a high movement efficiency of the fine powder of the plant constituent housed in the processing container 4 piled up by 2, 43.

An exhaust path is formed at the rear of the opening 31 of the processing container 4. A heater (not shown) is provided outside the U-shaped tank of the processing container 4. Therefore, the amount of heat generated by the heater is efficiently transmitted to the processing container 4 side. This heater is used to control the temperature of the processing container 4 mounted on the main body 1 within a predetermined temperature range.
The on / off control of the energizing current or the energizing current value is controlled by detecting the temperature. Opening 31 of the processing container 4
In addition to the exhaust path, a controller (not shown) is arranged in the rear part of the rear part. This controller performs electrical control of the entire portable toilet of this embodiment. The electric motor, which is controlled to rotate at a constant speed by the controller, applies a rotational force to the gear 46 of the processing container 4 by the speed reduction mechanism after the predetermined speed reduction. This rotation is normally about 0.5 to 3 rotations at predetermined time intervals. Similarly, the exhaust fan whose rotation is controlled by the controller exhausts the air in the processing container 4 into the main body 1 through the catalytic deodorizer.

Next, the operation of the portable toilet of this embodiment having the above-mentioned structure will be described.

First, the crushed rice husks, wood chips, etc., if necessary, aerobic fermentative bacteria, and, if necessary, an adsorbent such as activated carbon are mixed to a height such that the upper part of the screw is hidden. deep. In the present embodiment, crushed rice husks, wood chips and the like and aerobic fermentative bacteria, if necessary, a mixture of adsorbents such as activated carbon was added, but in the case of carrying out the present invention, a fine powder of a plant constituent Any body and aerobic fermentative bacteria may be used. Further, the fermenting bacterium used in the present embodiment, aerobic thermophilic fermenting bacterium was used, but when carrying out the present invention, it is not limited to aerobic thermophilic fermenting bacterium, and It may or may not be used.

The temperature at which the aerobic high-temperature fermenting bacterium used for fermenting and decomposing the human waste used in the present embodiment can effectively operate is 40
Since the temperature is in the range of 90 to 90 ° C., the temperature in the processing container 4 is controlled in the temperature range of 40 to 90 ° C.
Within the range, the crushed rice husks, wood chips and human waste in the processing container 4 are constantly mixed and stirred by the stirring means 10 under the adjusted temperature condition, and the aerobic fermentative bacteria are mixed and stirred as necessary.

Further, an exhaust fan (not shown) is always driven, and the air in the main body 1 is forcedly exhausted from the main body 1 by the exhaust fan via the catalytic deodorizer. At this time, the odor is removed by the catalytic deodorizer, but no odor is generated due to the nature of the fermentation bacterium during the decomposition treatment of the usual effluent by the aerobic fermentation bacterium. The exhaust fan is always driven in order to remove the water in the processing container 4. The exhaust fan of the present embodiment has an air supply function of introducing outside air into the processing container 4 mounted on the main body 1.

In this state, when the user sits down on the toilet seat 2 of the main body 1 and excretes from the upper opening 2a of the toilet seat 2, the excrement is stirred in the processing container 4 under the temperature range of 40 to 90 ° C.
By 0, rice husks, wood chips, etc. and human waste are mixed and stirred. Therefore, the excrement is instantly husked by the stirring means 40,
The mixture is stirred with wood chips and the like, and if necessary, the activated carbon adsorbed adsorbs the odor to a small extent, and is completely removed by the catalytic deodorizer.

When the excrement is mixed and stirred with rice husks, wood chips, etc. by the agitating means 40, the rice husks, wood chips, etc. are fermented and decomposed by the microorganisms and aerobic fermentative bacteria by the aerobic high temperature fermentative bacteria that are actively active, and the treatment container 4 It composts with the crushed rice husk and wood waste inside, and increases as a whole. This increase due to excrement can be returned naturally by taking out a part of the composted material in the processing container 4 as fertilizer and applying fertilizer at a timing of once every one to several months.

Fermentative decomposition of excrement by aerobic fermenting bacteria during this period does not cause an unpleasant odor due to aerobicity, and kills Escherichia coli and other parasite eggs that are harmful to humans at high temperatures. Further, even if the composted material in the processing container 4 is applied as a fertilizer, no bad odor is generated and bacteria are not propagated. When fertilizing the compost product in the processing container 4 as a fertilizer or discarding it, the compost is taken out from the opening 31 of the base 3 of the main body 1 or the take-out port 32 formed in the same plane as the opening 31.

As described above, the portable toilet of this embodiment has the toilet seat 2 having the upper opening 2a on which the buttocks are placed.
And the upper opening 2a side of the toilet seat 2 is opened, and the bottom is cross-section approximately U
A processing container 4 that is formed in a letter shape and that stores the fine powder of the plant constituent, and a pair of screws 42 and 43 that rotate in the processing container 4 and that form spirals in mutually opposite directions. And a stirring means 40 attached to a shaft 41 arranged at a right angle to the processing vessel 4, the bottom of which is formed to have a substantially U-shaped cross section, has a length of 400 to 900 mm, and
The radius of the pair of screws 42, 43 is 70 to 150 mm
Further, the number of spiral windings of the pair of screws 42 and 43 is set to 2 to 5 turns.

In the use of the portable toilet of this embodiment, first, the temperature of the processing container 4 mounted on the main body 1 is controlled within a predetermined temperature range by the heater, and the environment inside the processing container 4 is controlled by aerobic fermentative bacteria. Keep the conditions suitable for activities. In the processing container 4 containing the fine powder of the plant constituent and the aerobic fermenting bacterium, the stirring means 40 is rotated by the gear 46 transmitting the output of the electric motor, whereby the fine powder of the excrement and the plant constituent and the aerobic property. The fermenting bacterium is agitated, and the excrement is fermented and decomposed by the aerobic fermenting bacterium to slightly increase the crushed rice husks and wood chips in the processing container 4. In order to increase the amount of rice husks and wood chips due to this excrement, the excrement can be returned naturally by applying the composted material in the processing container 4 as fertilizer. That is, the excrement can be treated in the portable toilet and the odor is not emitted. Further, when the compost product in the processing container 4 is taken out, fertilizers such as increased amount of crushed rice husks and wood chips are taken out from the processing container 4. Since the fine powder of the plant constituent of the present embodiment uses a widely used material,
It can be cheap.

In particular, the stirring means 40 attached to the shaft 41 arranged in the direction perpendicular to the bottom surface of the processing container 4 having a substantially U-shaped cross section forms spirals in the processing container 4 in opposite directions which rotate in the processing container 4. The pair of screws 42, 43 having a pair of screws 42, 43 formed in a spiral shape in the opposite directions to each other have a spiral winding number of 2 to 5 turns, and therefore, for excrement disposal. It is optimal in terms of suitable stirring capacity, noise, easiness of cleaning, weight, cost, etc. Further, when the radius D of the pair of screws 42, 43 is 70-150 mm, they rotate in the processing container 4 and are opposite to each other. The pair of screws 42 and 43 that form a spiral in the direction are optimal in terms of stirring ability, noise, easiness of cleaning, weight, cost, etc. suitable for excrement treatment, and further, the bottom is formed in a substantially U-shaped cross section. The processed container 4 is When the length and 400～900Mm, excrement efficiently be processed and there is an effect that it compact.

By the way, the pair of screws 42 and 43 in the above-mentioned embodiment use the same radius D, but when the present invention is carried out, a slight difference in radius can be provided.

Further, although the air supply means for introducing the outside air into the processing container 4 mounted on the main body 1 of the above-mentioned embodiment is an exhaust fan for exhausting, when the present invention is carried out, It can be an intake fan that forcibly intakes air.

In the deodorizing means of the above-mentioned embodiment, the processing container 4 mounted on the main body 1 is composed of a catalytic deodorizer, but the deodorizing means in the case of carrying out the present invention performs the known deodorizing of air. Deodorizing means can be used.

[0034]

INDUSTRIAL APPLICABILITY As described above, in the portable toilet according to the present invention, the upper opening side of the toilet seat having the upper opening on which the buttocks are placed is opened, and the bottom is formed into a substantially U-shaped cross section. And a stirring means in which a pair of screws that form spirals in opposite directions and that rotate in the processing container are mounted on a shaft that is disposed at a right angle to the bottom surface having a substantially U-shaped cross section. And the length of the processing container whose bottom is formed in a substantially U-shaped cross section is 400 to
It is set to 900 mm, the radius of the pair of screws is set to 70 to 150 mm, and the number of spiral windings of the pair of screws is set to 2 to 5 turns.

Therefore, the environment is set to a condition suitable for the activity of the aerobic fermenting bacterium, and the excrement and the fine powder of the plant constituent are stirred by the stirring means in the processing container for storing the fine powder of the plant constituent. , Excrement is fermented and decomposed by aerobic fermentative bacteria. The amount of rice husks, wood chips, etc. increases due to excrement, and by applying the composted material in the processing container as fertilizer,
The excrement can be returned naturally.

In particular, the stirring means attached to the shaft disposed in the direction perpendicular to the bottom surface of the processing container having a substantially U-shaped cross section is a pair of screws that rotate in the processing container and form spirals in opposite directions. The pair of screws that have a spiral formed by strips in opposite directions have a spiral winding number of 2 to 5 turns, and therefore, the stirring capacity, noise, and cleaning that are suitable for excrement treatment are easy. Optimal in terms of performance, weight, cost, etc. Also, the radius of the pair of screws is 70 to 15
When set to 0 mm, the pair of screws that rotate in the treatment container and form a spiral in opposite directions are optimal in terms of stirring ability, noise, ease of cleaning, weight, cost, etc. suitable for excrement treatment, Further, the processing container having a bottom portion formed into a substantially U-shaped cross section has an effect that the excrement can be efficiently processed and the size can be reduced when the length is 400 to 900 mm.

[Brief description of drawings]

FIG. 1 is a sectional view of a structure of a portable toilet according to an embodiment of the present invention, taken along the length of a shaft.

FIG. 2 is a sectional view of a main part of the structure of a portable toilet according to an embodiment of the present invention, taken along a direction perpendicular to a shaft.

[Explanation of symbols]

1 Main Body 2 Toilet Seat 2a Upper Opening 3 Base 31 Opening 4 Processing Container 40 Stirring Means 41 Shafts 42, 43 Screw D Screw Radius H Depth of Processing Container In the drawings, the same reference numerals and symbols are the same or corresponding components. Is shown.

Front Page Continuation (72) Inventor Sugibayashi Regular, Nagata 1 Ochiai, Kasuga-cho, Nishikasugai-gun, Aichi Toyoda Gosei Co., Ltd. In-house (72) Inventor Makoto Kawai No. 1 Nagahata, Ochiai, Kasuga-cho, Nishikasugai-gun, Aichi Prefecture, Toyoda Gosei Co., Ltd. (72) Inventor, Shuichi Ishida, 1 Ochihata, Ochiai, Nishikasugai-gun, Aichi Prefecture, Toyoda Gosei Co., Ltd. 72) Inventor, Saitou 2937-1 Wada-mura, Ogata-gun, Nagano Prefecture 1 Toshin Furniture Co., Ltd.

Claims (1)

[Claims] 1. A toilet seat having an upper opening on which the buttocks are placed, and a processing container in which the upper opening side of the toilet seat is open and the bottom is formed into a substantially U-shaped cross section and which contains a fine powder of a plant constituent as a main material. And a stirring means in which a pair of screws that rotate in the processing container and that form spirals in opposite directions are attached to a shaft that is disposed in a direction perpendicular to the bottom surface having a substantially U-shaped cross section. The length of the processing container whose bottom is formed in a substantially U-shaped cross section is 4
The portable toilet is characterized in that the radius of the pair of screws is 70 to 150 mm, and the number of spiral windings of the pair of screws is 2 to 5 turns.