JP3293488B2 - Portable toilet - Google Patents

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 in the toilet of each house, and is large in size and cannot be used easily.

[0006] In a known portable toilet for storing excrement of infants, the elderly, and those who need nursing care, a polybucket-shaped toilet tub is provided under a toilet seat on which the buttocks are placed, and after use (after excretion), In some cases, the toilet tub is removed to discard excrement and clean the toilet tub. However, the post-excretion treatment is troublesome and there is a problem in hygiene.

[0007] In particular, when a paper bucket is used to store the excrement of a portable toilet, the paper bucket containing the excretion must be treated as combustible waste. However, in the real life of Japanese people, the practice of storing excrement in a special deodorant bag for several days and disposing of it as garbage on the day of collection of garbage is called garbage disposal. There was resistance to storing it at home until the day of collection, and there was a sense of fouling. Therefore, there is a need for a portable toilet that can process excrement and does not emit odor.

[0008] When a treatment tank is provided in a portable toilet so as to treat excrement, it is necessary to agitate the excrement in the treatment tank in order to accelerate the decomposition treatment. Although a chemically stable stainless steel sheet is used as the treatment tank, the thickness of the stainless steel sheet cannot be increased due to mechanical strength, manufacturing cost, weight, and handleability. However, when a motor and a reduction gear and a stirrer rotated by the motor are attached to the processing tank,
It is necessary to maintain the processing accuracy. In particular, 1.2 mm
When using a stainless steel plate of a moderate thickness, the treatment tank formed by welding the stainless steel plate is partially reinforced with a thick stainless steel plate to make the whole firm, and even if bearings are attached due to the welding distortion. In addition, the rotation of the stirrer is not performed smoothly. In addition, the casters may not be well balanced due to welding distortion.

Accordingly, an object of the present invention is to provide a lightweight portable toilet that can be used without deteriorating processing accuracy due to welding distortion.

[0010]

According to a first aspect of the present invention, there is provided a portable toilet including a toilet seat on which a buttocks are placed, a processing unit for accommodating fine powder of plant constituents and aerobic fermentation bacteria, and an upper portion of the processing unit. Provided with an armrest, the processing section is sealed at both ends with a plate material, and has a substantially U-shaped cross section having a bent portion which is bent at a substantially right angle in a horizontal direction at a substantially right angle between the sealed plate materials. A plate member having a stirring tank portion, a box-shaped frame portion formed by bending at least three sides of a center surface of the plate material in a substantially right angle direction, and a plate member sealing both ends of the stirring tank portion and the frame portion; Are opposed to each other and the two are integrally fixed.

In a portable toilet according to a second aspect, a supporting portion attached to an armrest is fixed to a bent portion of the stirring tank portion.

[0012]

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.

In FIG. 1, the toilet seat 2 has an upper opening 2A on which the buttocks are placed and a compost outlet 2B for taking out compost approximately once a month. The base 3 is the base of the whole, bears the whole mechanical configuration,
It comprises a processing section 3A having a stirring tank section 31 to be described later for performing a composting process and a design section 3B serving as a design cover thereof. The toilet seat 2 is disposed at the upper end of the processing section 3A of the base 3. The upper opening 2A of the toilet seat 2 is formed in a size that allows urination and defecation with the buttocks placed thereon. Also,
In the surroundings, the weight of the human body is dispersed and added to the processing unit 3A. The toilet lid 5 is pivotally supported by the toilet seat 2,
The upper opening 2A can be freely opened and closed. An armrest 6 is provided in the processing unit 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 formed by covering a metal core with a synthetic resin and formed in a substantially U-shape when viewed from a plane. An upper end is connected to the metal core of the armrest 8, and the lower end is further processed. It is composed of two left and right support portions 6a, 6b and support portions 6c, 6d connected to the upper end of the portion 3A. The armrest 8 formed in a substantially U-shape is constituted by left and right left armrest sides 8a and right armrest sides 8c having ends and a back side 8b therebetween. In addition, the plane shape is substantially U-shaped, and the back side 8b located substantially in the center is disposed near the vertical upper part of the center of gravity of the entire portable toilet. In addition, the center of gravity of the portable toilet according to the present embodiment is configured by disposing the gear 10, the motor 11, and other devices, a control system, and the like at the rear.
The center of gravity is set toward the rear.

The toilet seat 5 has a coating 5a formed by blow molding, and foaming in the coating 5a.
It is formed of a foam 5b filled and fused inside. That is, the coating 5a is placed in a mold having the shape of the predetermined toilet seat 5 in the form of PP.
(Polypropylene) is blow-molded, and bead-like PP and PS are placed in a mold having the shape of the predetermined toilet seat 5.
One or more foamable materials of (polystyrene) are filled as a foam 5b, and the coating 5 is formed under a predetermined temperature condition.
This is formed by super blow molding in which the inner surface of a is fused to the foam 5b.

Further, the toilet lid 2 has a coating 2a formed by blow molding, and foaming inside the coating 2a.
It is formed of a foam 2b filled and fused inside. That is, the coating 2a is placed in a mold having the shape of the predetermined toilet lid 2 in the form of PP.
And the like, and in a mold having the shape of the predetermined toilet lid 2, at least one kind of foamable material of PP and PS is filled as a foam 2b, and the inner surface of the coating 2a is filled. And a foam 2b formed by super blow molding. Note that since no special load is applied to the toilet lid 2, it may be formed by blow molding.

The rotation of the toilet lid 5 of the present embodiment is restricted by contacting the back side 8b of the armrest 8 formed in a substantially U-shape. The rotation of the toilet lid 5 by this means generally takes about 100 to 100 from the state where the upper opening 2A of the toilet seat 2 is closed.
The rotation is about 130 degrees. The base cover 3C covers the compost outlet lid 7 and the compost outlet 2B,
The lower part of the front surface is engaged with the toilet seat 2 between the upper opening 2A and the compost outlet 2B, and the other lower peripheral surface is engaged with the design part 3B.

Further, the armrest 6 has a function of guiding the toilet seat 2 so that the toilet seat 2 can be placed at a fixed position on the upper surface of the base 3 on the processing section 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 portion are determined according to the armrests 6, and the toilet seat 2 is moved to the upper surface of the base 3, so that the toilet seat 2 is fixed on the upper surface of the base 3. Can be placed on Further, the compost outlet lid 7 is opened when the mixture of crushed rice hulls, wood chips, etc. and aerobic high-temperature fermentation bacteria is mixed and stirred with excrement to take out compost that has become compost, and closes the compost outlet 2B. It is fitted in the case, and has a shape for specifying the fitting position.

The main body 1 in the present embodiment comprises a toilet seat 2 having an upper opening 2A on which the buttocks are placed, a processing section 3A serving as a stirring tank section 31 for accommodating fine powder of plant constituents and aerobic fermentative bacteria. A base 3 having a design portion 3B serving as a design cover, and a support portion 6 attached to an upper portion of the base 3
a, 6b, 6c, and 6d.

The above-mentioned toilet seat 2 and toilet lid 5 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 being supported by a shaft. 5B is provided by a synthetic resin adhesive. Similarly, a switch fitting concave portion 2D is formed in a lower surface of a position facing the permanent magnet 5B at an intermediate portion between the upper opening 2A and the compost outlet 2B at the lower portion of the seat portion 2, and
The reed switch 2E is provided there with a synthetic resin adhesive. The reed switch 2E is closed when the permanent magnet 5B of the toilet lid 5 is approaching, that is, when the toilet lid 5 is closed, and when the permanent magnet 5B of the toilet lid 5 is away, that is, when the toilet lid is Open when 5 is open. This reed switch 2E is the toilet lid switch of the present embodiment.

A compost removal switch (not shown) that is opened when the compost removal cover 7 is open is disposed below the compost removal opening 2B of the toilet seat 2. The reed switch 2E serving as the toilet lid switch of the present embodiment is opened and closed about once a month to reduce the compost to 5 times.
The opening / closing of the compost taking-out switch of the compost taking-out cover 7 when taking out about 1 liter is such that the electric operation of the stirrer 20 and the like is stopped by opening the compost taking-out switch, and the electric operation is continued by closing the opening.

The processing section 3A of the main body 1 of the present embodiment has an opening wider than the upper opening 2A of the toilet seat 2. The processing unit 3A includes a frame 32 and a frame 33, both ends of which are square.
A substantially rectangular parallelepiped box-shaped container having a U-shaped stirring tank portion 31 therebetween, and having an upper opening as a whole. At a substantially central portion in the longitudinal direction between the frame portion 32 and the frame portion 33 of the stirring tank portion 31, a stirrer 2 pivotally supported on both sides is provided.
0 is provided. The stirrer 20 is provided with a gear 1 attached to the shaft 21 that penetrates the frame portion 33 from the stirring tank portion 31.
Rotational force is obtained from the electric motor 11 through the motor 0. Stirrer 2
0 denotes two spiral stirring elements 20a and 2
It has a stirring element 20b whose helix is reversed to 0a, and the stirring element 20a and the stirring element 20b are closely connected at the center. The stirring element 20 is rotated by the rotation of the shaft 21.
a and 20b rotate in the stirring tank 31 and the stirring element 2
0a and the stirrer 20b operate to collect in the center direction or disperse from the center to both sides. The stirrers 20a and 20b of the present embodiment have spirals connected in parallel to the shaft 21,
The arrangement is such that the balance is uniform with respect to 0 degree rotation. In addition, they are arranged so that a uniform load is applied to the rotation of the shaft 21. Therefore, the stirring tank 31 is rotated by the rotational force applied to the shaft 21.
The shaft 21 rotates, and the pair of stirring elements 20a and 20b rotate. This rotation has a small contact resistance due to the bearing, and can be easily rotated.

Next, the processing section 3A of the portable toilet according to the present embodiment will be described in detail.

FIG. 5 is a perspective view of a processing section of the portable toilet according to the embodiment of the present invention, and FIG. 6 is a development view of a main portion of the processing section of the portable toilet of the embodiment of the present invention.

In the figure, a processing unit 3A of the present embodiment
Has a stirring tank 31 having a U-shaped space between the frame 32 and the frame 33 at both ends.

The stirring tank 31 has a main portion 31a bent substantially in a U-shape when viewed from the side, and a bent portion 31b having both ends bent outward at a substantially right angle. The bent portion 3 shown
1b is obtained by bending both ends outward at a substantially right angle,
Further, both ends may be bent downward at a substantially right angle in an L-shape, or both ends may be bent at a substantially right angle in a U-shape. The mechanical strength can be increased according to the number of times of bending. At both ends of the main portion 31a bent in a substantially U shape, end plates 31c for sealing the ends are welded along both sides. In the present embodiment, both are made of a stainless steel plate having a thickness of 1.2 mm, and the welding between the two is performed in a substantially U-shape. No welding was completed. The end plate 31c is provided with a through hole 31d through which the shaft 21 is inserted. As described above, the stirring tank 31 having a substantially U-shaped cross section has both ends at the end plates 31c.
And has a bent portion 31b which is formed by bending the sealed end plates 31c in a horizontal direction at a substantially right angle.

The frame portion 32 and the frame portion 33 are formed by bending four sides of the center plane 32a or the center plane 33a of the plate in a substantially right angle direction. That is, the four corners of the central surface 32a of the plate material are cut out in a square to make four sides convex, and the four sides convex are bent at a right angle to form bent pieces 32b, 32c, 32d, 32e.
To form When welding is performed between the bent pieces 32b, 32c, 32d, and 32e, the mechanical strength can be increased. However, when a stainless steel plate having a thickness of 3 mm or more is used, the mechanical strength required for a portable toilet can be obtained even if welding between the two is omitted. However, according to the trial production results of the inventors, the frame portions 32 and 33 are
d, 33d, without forming the central surfaces 32a, 33
It was confirmed that mechanical strength was substantially satisfied when at least three sides of a were bent in a substantially right angle direction to form a box. A bearing 32f of the shaft 21 is provided on the center surface 32a at a position facing the through hole 31d of the end plate 31c. Further, a pair of casters Ca with stoppers are disposed at both ends of the bent piece 32d located at the lower part during assembly so that the load is reduced.
d and bent piece 32c or bent piece 32e. Similarly, the four corners of the central surface 33a of the plate material are cut off in a square, and the four sides are convex, and the convexities of the four sides are bent at right angles to form bent pieces 33b, 33c, 33d, 33e. . Welding is performed between the bent pieces 33b, 33c, 33d, and 33e. A bearing (not shown) of the shaft 21 is provided on the center surface 33a at a position facing the through hole 31d of the end plate 31c. Also, the bent piece 3 located at the bottom during assembly
At both ends of 3d, a pair of casters Cb is arranged, and a load is applied to the bent piece 33d and the bent piece 33c or 33e. Thus, the frame portions 32, 3
Reference numeral 3 denotes a box-like shape obtained by bending at least three sides of the center surface of the plate material in a substantially right angle direction.

In the present embodiment, both ends are sealed with end plates 31c, and a stirring portion having a substantially U-shaped cross section having a bent portion 31b which is bent at a substantially right angle in the horizontal direction between the sealed end plates 31c. Tank part 3
1 and an end plate having box-shaped frame portions 32 and 33 formed by bending at least three sides of central surfaces 32a and 33a of the plate material in a substantially right angle direction, and sealing both ends of a stirring tank portion 31. 31c and the center plane 32a of the frame body 32 or the center plane 33 of the frame body 33
a, the periphery of the center surface 32a before mounting the bearing 32f and the periphery of the through hole 31d of the end plate 31c are welded together, and the two are integrally welded, and before the bearing of the center surface 33a is mounted. The periphery thereof and the periphery of the through hole 31d of the end plate 31c are opposed to each other, and the two are welded integrally, especially around the periphery of the through hole 31d, so as to have a sealing property.
The bearing 32f is mounted on the center plane 32a and the bearing (not shown) on the center plane 33a. Also, the bent piece 32b of the frame 32
And the bent part 31b of the stirring tank part 31 are welded, and the frame part 33 is welded.
Is welded to the bent portion 33b of the stirring tank portion 31 and, if necessary, a portion of the facing surface between the center surface 32a of the frame body portion 32 and the end plate 31c of the stirring tank portion 31. Welding parts
In addition, a part of the opposing surface of the center surface 33a of the frame 33 and the end plate 31c of the stirring tank 31 is also welded, and the two are integrally fixed by welding to constitute the processing unit 3A.

In the present embodiment, the four corners of the central surface 32a or the central surface 33a of the plate material are cut out in a square shape to make four sides convex, and the four side convex shapes are bent at right angles to form a bent piece. 32
b, 32c, 32d, 32e or bent pieces 33b, 33
Although c, 33d and 33e are formed, when implementing the present invention, bent pieces 32b, 32c, 32d and 3
2e or one of bent pieces 33b, 33c, 33d, 33e
A configuration that does not bend at more than one location can be adopted. Also,
Folded piece 32b, 32c, 32d, 32e or bent piece 3
One or more of 3b, 33c, 33d, and 33e can be bent one or more times. At this time, by increasing the number of times of bending, the mechanical strength is increased. Also, the bent pieces 32b, 32c, 32d, 32e and the bent pieces 33b,
33c, 33d, and 33e may be bent twice, and the ends may be welded to the center plane 32a or the center plane 33a. At this time, particularly, the frame portions 32 and 33 are mechanically rigid.

A bent portion 3 is formed by bending both ends of a substantially U-shaped main portion 31a constituting the stirring tank portion 31 outward at substantially right angles.
The bases of the support portions 6a, 6b, 6c, 6d of the armrest 6 are fixed to 1b by welding via connecting pieces 9a, 9b, 9c, 9d. However, when the plate material forming the stirring tank portion 31 is thin, the bent portion 31b may be double-folded or triple-folded and fixed by welding or caulking.

Under the stirring tank section 31 of the present embodiment,
A heater (not shown) composed of a thermistor or the like is provided, and heat generated by the heater is transmitted to the stirring tank 31 side. The controller 9 is disposed on the side of the frame 33 of the processing section 3A into which the stirring tank 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. The microcomputer inputs the signal of a temperature sensor for controlling the temperature of the stirring tank 31 within a predetermined temperature range, and the signal of a reed switch 2E serving as a compost removal switch or a toilet lid switch. ing.
The microcomputer outputs a heater on / off signal. Similarly, it outputs a motor forward rotation output for driving the motor 11 forward and a motor reverse rotation output for reverse rotation. Then, an exhaust fan (not shown) whose rotation is controlled by the controller 9 exhausts the air in the stirring tank 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 11 controlled to rotate at a constant speed by the controller 9 is decelerated at a predetermined speed.
A rotating force is applied to the shaft 21 of the stirring tank 31.

Furthermore, in the present embodiment, at the lower end of the processing section 3A having the stirring tank section 31 in which the toilet seat 2 is disposed, a pair of casters Ca with stoppers are provided at the four corners in front and a pair of casters Ca are provided at the rear. A caster Cb is provided. In a normal use state, the rotation of the pair of stopper-equipped casters Ca is restricted by the stopper function. And
The pair of casters Cb is rotatable.

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 fermenters is put into a stirring tank 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 stirring tank 31 is set to 50 to 65 ° C. by the heater as the heating means. Within the range of 60 ° C., under the adjusted temperature condition, the aerobic fermentation bacteria and the crushed rice hulls, wood chips, etc. in the stirring tank 31 are mixed and stirred by the stirrer 20 at a rate of about once every 8 hours. .

Further, 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 bacterium 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 stirring tank 31, and the inside of the main body 1 3
This is for setting the atmosphere at about 5 to 40 ° C.

In this state, when the user sits 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 agitator 2 in a temperature range of 50 to 60 ° C. in the agitating tank 31.
According to 0, rice husks, wood chips, etc. are mixed and stirred 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 stirred The crushed rice hulls and wood chips in the tank 31 become compost, that is, compost. When the compost in the stirring tank 31 is fertilized or discarded as fertilizer, the compost outlet lid 7 is opened and the compost is taken out from the stirring tank 31.

The fermentative decomposition of the excrement by the aerobic fermentation bacteria during this time also kills parasite eggs that are harmful to E. coli and other humans at high temperatures. Further, even if the rice husks, wood chips, and the like in the stirring tank 31 are fertilized as fertilizer, generation of offensive odor and germs are not propagated.

The portable toilet of the present embodiment has a toilet seat 2 having an upper opening on which the buttocks are placed, a processing unit 3A for accommodating fine powder of plant constituents and aerobic fermentative bacteria, and a design unit serving as a design cover. A base 3 having a base 3B;
And armrests 8 fixed to the supporting portions 6a, 6b, 6c, 6d attached to the upper part of the vehicle. When the present invention is implemented, the number of the supporting portions 6a, 6b, 6c, 6d is required. Is not limited to four, but may be two or three. However, as in the present embodiment, stability is good when there are a total of four pairs of two pairs on the left and right.

Further, the portable toilet of the present embodiment comprises a base 3 having a processing section 3A for accommodating fine powder of plant constituents and aerobic fermentation bacteria, and a design section 3B serving as a design cover. However, when the present invention is carried out, the present invention is also applicable to those which do not contain fine powder of plant constituents and aerobic fermentation bacteria. However, in particular, in the case of storing fine powder of plant constituents and aerobic fermentation bacteria, the weight of the portable toilet is stable, and the effect is remarkable.

The toilet seat 2 of the portable toilet according to the present embodiment.
Is a method of forming a coating 2a by blow molding using a super blow molding technique, and foaming a bead-like foam material in a coating 2a built in a mold used for the blow molding, and filling and fusing the foam. Since it has the body 2b, it can be easily manufactured, is inexpensive, and can be reduced in weight as compared with 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 technique of super blow molding, 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 PPS, it can be recycled. Of course, other components can also be PP.

As described above, the portable toilet of the present embodiment has a toilet seat 2 on which the buttocks are placed, a processing unit 3A for accommodating the fine powder of the plant constituents and the aerobic fermentation bacteria, and a processing unit 3A.
In the portable toilet having the armrest 8 disposed on the upper part of the portable toilet, the processing unit 3A seals both ends with the end plates 31c, and bends the sealed end plates 31c in a horizontal direction at a substantially right angle. And a box-shaped frame portion 32, 33 formed by bending at least three sides of a central surface of a plate in a substantially right angle direction. An end plate 31c sealing both ends of the stirring tank 31 and the frame 3
The center surfaces 32a and 33a of the two members 33 are opposed to each other, and both are integrally fixed by welding.

Therefore, the processing section 3A is connected to the end plate 3 at both ends.
A stirring tank 31 having a substantially U-shaped cross section having a bent portion 31b that is horizontally bent at a substantially right angle therebetween, and at least three sides of the center surface of the plate are bent substantially at right angles. And the box-shaped frame portions 32 and 33 formed independently.
The end plate 31c, which seals both ends of the stirring tank 31, and the central surfaces 32a, 33a of the frame portions 32, 33 are opposed to each other, and both are integrally fixed by welding.
The thickness of the material 1 and the thickness of the material of the frame portions 32 and 33 can be made different from each other, and the distortion generated during the manufacturing process of the components having different thicknesses can be suppressed to a minimum. Moreover,
Since a thin material can be used where no external force is directly applied, the weight can be reduced.

In the portable toilet of the present embodiment, supporting portions 6a, 6b, 6c and 6d attached to armrests 8 are connected to bent portions 31b of stirring tank 31 by connecting pieces 9a, 9b, 9c and 9 respectively.
d. Therefore, the armrest 8 is provided at a place where the mechanical strength of the bent portion 31b of the stirring tank 31 is high.
, The mechanical stability of the processing section 3A can be maintained, and the load does not lower the mechanical accuracy.

In this embodiment, the center plane 3 of the plate is
2a or the four corners of the center plane 33a
The sides are convex, and the four sides are bent at right angles to form bent pieces 32b, 32c, 32d, 32e or bent pieces 33b,
33c, 33d, and 33e are formed. However, when the present invention is implemented, the bent pieces 32b, 32c, and 32e are formed.
d, 32e or bent pieces 33b, 33c, 33d, 33
One or more portions of e may not be bent.
Also, one or more of the bent pieces 32b, 32c, 32d, and 32e or the bent pieces 33b, 33c, 33d, and 33e are
It can be bent more than once and does not specify the shape of the bend. At this time, the mechanical strength is increased depending on the number of times of bending and the bent shape.

Further, a bent portion 31b which is formed by bending both ends of a substantially U-shaped main portion 31a constituting the stirring tank portion 31 outward at substantially right angles can be bent at least once.
It does not specify the shape of the bend. Also at this time, the mechanical strength is increased by the number of times of bending and the bent shape.

In the present embodiment, a pair of casters Ca with stoppers are provided at the front, and a pair of casters C are provided at the rear.
b, the casters Ca with four stoppers are provided at the front and rear when the present invention is implemented.
May be provided, or a caster for movement may be provided only at the rear, and a rubber leg may be provided at the front. Also, four rubber legs can be used.

[0048]

As described above, the processing section for accommodating the fine powder of the plant constituents of the portable toilet and the aerobic fermentation bacterium according to the first aspect of the present invention has both ends sealed with plate materials. Is substantially U-shaped and has a bent portion which is bent at a substantially right angle in the horizontal direction.
And a box-shaped frame portion formed by bending at least three sides of a central surface of the plate material in a substantially right-angle direction, and a plate material in which both ends of the stirring tank portion are sealed, The two are integrally fixed with the central surface of the frame body facing the center.

Therefore, both ends are sealed with end plates, and the section between them has a substantially U-shaped cross section having a bent portion that is bent at a substantially right angle in the horizontal direction.
And a box-shaped frame portion formed by bending at least three sides of the central surface of the plate material in a substantially right angle direction, and then sealing both ends of the stirring tank portion. The end plate and the center surface of the frame portion are opposed to each other and are fixed together by welding, so that the thickness of the material of the stirring tank portion and the thickness of the material of the frame portion can be different. In addition, it is possible to minimize the distortion generated during the manufacturing process of the components having different thicknesses. Further, the flatness of the component surface is not impaired by welding at this time. In addition, since a thin material can be used at a place where external force is not directly applied, the weight of the processing unit can be reduced. In addition, workability is good because independent assembly is possible.

According to the portable toilet of the second aspect, a support portion attached to an armrest is fixed to a bent portion of the stirring tank portion. Therefore, in addition to the effect of the first aspect, a load of the armrest can be applied to a place where the mechanical strength of the bent portion of the stirring tank portion is high, so that mechanical stability can be maintained.

[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 processing unit of the portable toilet according to the embodiment of the present invention.

FIG. 6 is a development view of a main part of a processing unit of the portable toilet according to the embodiment of the present invention.

[Explanation of symbols]

 2 toilet seat 3 base 3A processing part 3B design part 6 armrest part 6a, 6b, 6c, 6d support part 8 armrest 31 stirring tank part 31a main part 31b bending part 32, 33 frame part

────────────────────────────────────────────────── ─── Continued on the front page (56) References Registered utility model 3020454 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47K 11/04

Claims (2)

(57) [Claims] 1. A portable toilet comprising: a toilet seat on which a buttock is placed; a processing unit for accommodating fine powder of plant constituents and aerobic fermentation bacteria; and an armrest disposed on an upper portion of the processing unit. The processing unit has both ends sealed with a plate material, and a stirring tank unit having a substantially U-shaped cross section having a bent portion that is bent in a horizontal direction at a substantially right angle between the sealed plate materials, and a center surface of the plate material. A box-shaped frame portion having at least three sides bent at substantially right angles, and a plate material sealing both ends of the stirring tank portion and a center surface of the frame portion facing each other, and the two are integrated. Portable toilet characterized by being stuck to. 2. The portable toilet according to claim 1, wherein a support portion attached to an armrest is fixed to the bent portion of the stirring tank portion.