Toilet device
The toilet device addresses installation limitations and drain pipe size issues by incorporating a crushing mechanism, coagulant, and heat-sealable film for flexible waste disposal, enhancing installation flexibility and pipe diameter options.
Patent Information
- Application Number
- JP2024083675
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-02
- Publication Date
- 2025-11-14
AI Technical Summary
Existing flush toilet devices for campers have limited installation options for the packing means due to their location below the toilet bowl, and require large-diameter drain pipes for low-fluidity waste discharge.
A toilet device with a crushing and discharging mechanism to increase waste fluidity, a coagulant supply for gel formation, and a packing means with heat-sealable tubular film for waste packaging, allowing flexible installation and use of small-diameter drain pipes.
Enables installation of the packing means in desired locations and uses small-diameter drain pipes, eliminating the need for a waste tank and facilitating efficient waste disposal in a compact and flexible manner.
Smart Images

Figure 2025169846000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a flush toilet device suitable for use in, for example, a camper van. [Background technology]
[0002] A flush toilet device suitable for campers and the like is known from Japanese Patent Application Laid-Open No. 2023-136593. This toilet device is equipped with a packing device located directly below the flushed portion (toilet bowl) that receives excrement. This packing device stores waste, flushing water, and a coagulant that solidifies them into a gel-like substance in a tubular film, which is then heat-sealed and packaged into a bag for disposal after each use of the toilet.
[0003] This toilet device eliminates the need for a waste tank to store excreted waste and flushing water after flushing the toilet, and also eliminates the need to discharge waste stored in the waste tank into a sewage tank connected to a sewage treatment facility.
[0004] Furthermore, a flush toilet device equipped with a pack device similar to the pack device described in the above-mentioned JP-A-2023-136593 is known to be that described in JP-A-2023-63204.
[0005] This toilet device uses a suction device to discharge waste from the toilet bowl and flushing water after flushing through a drain pipe into a packing device, which then stores the waste and flushing water in a tubular film and seals it into a bag using heat welding to dispose of the waste. [Prior art documents] [Patent documents]
[0006] [Patent Document 1] Japanese Patent Application Publication No. 2023-136593 [Patent Document 2] Japanese Patent Publication No. 2023-63204 Summary of the Invention [Problem to be solved by the invention]
[0007] However, in the toilet device described in Patent Document 1, the pack device needs to be installed directly below the part to be cleaned (toilet bowl), which poses a problem in that the location where the pack device can be installed is limited.
[0008] Furthermore, the toilet device described in Patent Document 2 has the problem that it requires a drain pipe with a large diameter because it discharges waste with low fluidity, such as feces and toilet paper, directly into the drain pipe.
[0009] Therefore, the present invention has been devised to solve the above problems, and aims to provide a toilet device that allows the packing means to be installed in a desired position and that can use a small-diameter drain pipe. [Means for solving the problem]
[0010] In order to solve the above problem, the toilet device of the present invention comprises: a toilet bowl configured to be able to supply flush water; a crushing and discharging means for crushing waste discharged from the toilet bowl, mixing the crushed waste with flush water discharged from the toilet bowl, and discharging the mixture as wastewater; a coagulant supply means for supplying a coagulant for coagulating the wastewater; a packing means for sealingly packaging the wastewater discharged from the crushing and discharging means and the coagulant supplied from the coagulant supplying means in a bag using a packaging material; a drainage pipe for draining wastewater discharged from the crushing and discharging means to the packing means; The present invention is characterized by the following features.
[0011] In the toilet device of the present invention, the packaging material is a tubular film, and the packing means is equipped with a welding and cutting means, which may be configured to include an upper welding means that seals the upper part of the tubular film by heat welding, a lower welding means that seals the lower part of the tubular film by heat welding, and a cutting means that is provided between the upper welding means and the lower welding means and cuts the tubular film.
[0012] In the toilet apparatus of the present invention, the upper welding means and the lower welding means may each be configured to include two strip-shaped heaters, one above the other. [Effects of the Invention]
[0013] According to the present invention, a waste tank is not required in a flush toilet device, and the crushed waste and flush water after flushing the toilet are discharged to the packing means via the drain pipe, so the packing means can be installed in a desired location by routing the drain pipe appropriately. Furthermore, because the waste discharged from the toilet is crushed and its fluidity is increased, a drain pipe with a small diameter can be used as the drain pipe. [Brief explanation of the drawings]
[0014] [Figure 1] 1 is a schematic diagram illustrating a general configuration of a toilet device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a schematic diagram showing the general configuration of the welding and cutting means of the toilet device, showing the state before welding and cutting. [Figure 3] 4 is a schematic diagram showing the general configuration of the welding and cutting means of the toilet device, showing the state during welding and cutting. FIG. [Figure 4] FIG. 2 is a schematic diagram showing the state in which gel-like wastewater is sealed and packaged in a bag by the toilet device. DETAILED DESCRIPTION OF THE INVENTION
[0015] A preferred embodiment of the present invention will now be described with reference to the drawings. As shown in Figure 1, a toilet device 1 according to one embodiment of the present invention is configured to include a Western-style toilet bowl 2 (hereinafter referred to as the toilet bowl 2), flush water supply means 3, a pump unit 4, coagulant supply means 5, packing means 6, and a drain pipe 7. The toilet bowl 2 is equipped with a private parts washing function for washing private parts such as the buttocks, but a description of this will be omitted.
[0016] The flush water supply means 3 is composed of a flush water tank 31 for storing flush water, a water supply pipe 32 connecting the flush water tank 31 to a water supply pump described later, a pump 33 for pressurizing the flush water, and an electromagnetic valve 34 for opening and closing the water supply pipe 32.
[0017] The pump unit 4 is attached to the lower rear of the toilet bowl 2, and a water supply impeller (not shown), a drain impeller (not shown), and a pulverizing impeller (not shown) are axially attached to the shaft (not shown) of a motor (not shown) that constitutes the pump unit 4, with the motor and water supply impeller forming a water supply pump 41, and the motor, drain impeller, and pulverizing impeller forming a pulverizing discharge pump 42. The toilet device 1 uses a marine toilet in which the toilet bowl 2 and pump unit 4 are integrated.
[0018] One end of the water supply pipe 32 is connected to the water supply pump 41, and when the water supply pump 41 is driven, flush water can be pumped to the toilet bowl 2.
[0019] One end of the drain pipe 7 is connected to the crushing discharge pump 42, and when the crushing discharge pump 42 is driven, waste such as feces and toilet paper discharged from the toilet 2 is crushed to increase its fluidity, and the crushed waste can be mixed with the flushing water discharged from the toilet 2 and pressure-fed to the drain pipe 7 as wastewater.
[0020] The coagulant supply means 5 is configured to include a coagulant tank 51 that stores powdered coagulant, a pipe 52 that supplies the coagulant to the packing means 6, and a powder delivery means 53 that is provided directly below the coagulant tank 51 and delivers the coagulant to the packing means 6 by rotating a screw.
[0021] The coagulant solidifies the wastewater pumped from the pulverizing discharge pump 42 through the drainage pipe 7 into a gel-like substance, and is mainly composed of a water-absorbing polymer that absorbs moisture, and is also formulated with ingredients that have antibacterial and deodorizing properties.
[0022] The packing means 6 seals and packages the wastewater pumped from the pulverizing discharge pump 42 and the coagulant supplied from the coagulant supplying means 5 into a bag using a tubular film, which will be described later, after each use of the toilet.
[0023] The packing means 6 has a housing (not shown), and a cylindrical guide member 61 is provided inside this housing, and a tubular film 100 of a predetermined length is set along the length of the outer surface of this guide member 61, folded alternately in mountain folds, valley folds, mountain folds, valley folds, etc., and compressed in the length direction.
[0024] The cylindrical film 100 is made of a thermoplastic resin that can be disposed of as is as a combustible material, and the inner surfaces can be sealed (heat sealed) by thermal welding, and the film can be cut (burned off) by thermal cutting.
[0025] The ends of the drain pipe 7 and the piping 52 face the inner periphery of the guide member 61, and the wastewater pumped from the pulverizing discharge pump 42 through the drain pipe 7 flows down the inside of the tubular film 100 and turns into gel-like wastewater due to the coagulant supplied from the coagulant supply means 5 through the piping 52.
[0026] The packing means 6 also includes a holding section 62 and a welding and cutting means 63. The holding section 62 is configured to support and hold the tubular film 100 (the flowing-down sewage) from below when the sewage pumped from the pulverization and discharge pump 42 flows down into the tubular film 100, the lower end of which is sealed by heat welding.
[0027] Welding and cutting means 63 is provided a certain distance above holding portion 62, and seals tubular film 100 into a bag shape by heat welding and cuts it. As shown in Figure 2, the welding and cutting means 63 is configured to include an upper welding means 64 that seals (heat seals) the upper part of the tubular film 100 by thermal welding, a lower welding means 65 that seals (heat seals) the lower part of the tubular film 100 by thermal welding, and a cutting means 66 that is provided between the upper welding means 64 and the lower welding means 65 and cuts the tubular film 100 by thermal welding.
[0028] 2, includes two upper and lower belt-shaped heat welding heaters 64a, 64a extending in the front-to-back direction of the drawing and two upper and lower belt-shaped pressing members 64b, 64b facing the heaters 64a, 64a, and the pressing members 64b, 64b are configured to be movable toward and away from each other across the tubular film 100. Note that the heaters 64a, 64a may be used instead of the pressing members 64b, 64b.
[0029] 2, includes two upper and lower belt-shaped heat welding heaters 65a, 65a extending in the front-to-back direction of the drawing and two upper and lower belt-shaped pressing members 65b, 65b facing the heaters 65a, 65a, and the pressing members 65b, 65b are configured to be movable toward and away from each other across the tubular film 100. Note that heaters 65a, 65a may be used instead of pressing members 65b, 65b.
[0030] 2, and includes linear cutting heaters 66a, 66a that can be moved toward and away from each other across tubular film 100. Note that instead of heaters 66a, 66a, a cutter equipped with a blade that mechanically cuts tubular film 100 may be used.
[0031] Next, the usage state of the toilet device 1 will be described. When a toilet user has finished defecating, etc., and turns on the toilet flush switch (not shown), the pump 33 starts operating and at the same time the solenoid valve 34 switches to the "open" state, a small amount of flush water is supplied to the toilet 2, and the water supply pump 41 starts operating a little after the pump 33 starts operating, and the flush water is pressure-fed to the toilet 2.
[0032] At the same time as the water supply pump 41 is driven, the crushing and discharge pump 42 is also driven, and waste such as feces and toilet paper discharged from the toilet 2 together with the flush water is crushed by the crushing and discharge pump 42 to increase its fluidity, and the crushed waste is mixed with the flush water discharged from the toilet 2 and pressure-fed to the drain pipe 7 as wastewater, which then flows down into the tubular film 100 set in the packing means 6. After that, the pump 33, the water supply pump 41, and the crushing and discharge pump 42 stop, and the solenoid valve 34 also returns to the "closed" state.
[0033] When a predetermined time has elapsed since the toilet flush switch was turned on, the powder delivery means 53 is activated, and a predetermined amount of coagulant is supplied into the tubular film 100 at the same time as the wastewater flows down into the tubular film 100, after which the powder delivery means 53 is stopped.
[0034] When a predetermined time has elapsed since the toilet flush switch was turned ON, electricity begins to be supplied to heaters 64a, 65a, and 66a, causing each heater to heat up to a predetermined temperature, and heaters 64a, 65a, and 66a, which had been spaced apart on both the front and rear sides of tubular film 100, and the opposing pressing members 64b, 65b, and heater 66a move closer to each other.
[0035] As shown in FIG. 3, the upper part of tubular film 100 where welding and cutting means 63 is located is sandwiched and pressurized between heaters 64a, 64a and pressing members 64b, 64b, sealing the two upper and lower parts by thermal welding, the lower part of tubular film 100 is sandwiched and pressurized between heaters 65a, 65a and pressing members 65b, 65b, sealing the two upper and lower parts by thermal welding, and predetermined parts of tubular film 100 are sandwiched and pressurized between heaters 66a, 66a, cutting the film by thermal welding. Thereafter, the power supply to heaters 64a, 65a, and 66a is stopped, and heaters 64a, 65a, and 66a are separated from pressing members 64b, 65b, and heater 66a, respectively, returning to the state shown in FIG.
[0036] The tubular film 100 is divided into an upper and lower portion into a portion containing the gelled wastewater A and an unpackaged portion by cutting with the cutting means 66, and the upper end of the tubular film 100 on the portion containing the gelled wastewater A is welded and sealed by the lower welding means 65, thereby sealing the gelled wastewater A in a bag shape. The lower end of the tubular film 100 on the unpackaged portion is welded and sealed by the upper welding means 64 to close the opening, in preparation for the next use of the toilet device 1.
[0037] As shown in Figure 4, the toilet user can remove the bag-shaped tubular film 100, which has an upper end 101 and a lower end 102 each welded and sealed and which contains the gel-like wastewater A, from the holding portion 62 of the packing means 6, and dispose of it as is if it can be disposed of as combustible waste.
[0038] By repeating the above operation for each toilet use, the toilet device 1 can seal and package the gel-like wastewater A into a bag after each toilet use. Note that, although the above description has exemplified a case in which the wastewater solidifies into a gel before the sealing and packaging in the tubular film 100 is completed, the wastewater may also solidify into a gel after the wastewater is sealed and packaged in the tubular film 100.
[0039] According to the toilet device 1 described above, a waste tank is not required in a flush toilet device, and the crushed waste and flush water after flushing the toilet are discharged to the packing means 6 via the drain pipe 7, so the packing means 6 can be installed in a desired location by appropriately routing the drain pipe 7. For example, the packing means 6 can be installed next to the toilet bowl 2, or it can be installed below the floor where the toilet bowl 2 is installed, or it can be installed in a location away from the private room where the toilet bowl 2 is installed.
[0040] Furthermore, since the waste discharged from the toilet bowl 2 is pulverized by the pulverizing discharge pump 42 to increase its fluidity, a drain pipe with a small diameter (for example, 25 mm) can be used as the drain pipe 7, which is convenient for routing the drain pipe 7. Furthermore, since the toilet device 1 is a flush type, it can be equipped with a private parts washing function for washing private parts such as the buttocks.
[0041] Furthermore, the upper welding means 64 is equipped with two heaters 64a, 64a, one at the top and one at the bottom, and the lower welding means 65 is also equipped with two heaters 65a, 65a, one at the top and one at the bottom, so that the upper and lower parts of the tubular film 100 are sealed by thermal welding at two points, one at the top and one at the bottom, thereby improving the sealing ability of the tubular film 100.
[0042] Furthermore, as long as the toilet device 1 can supply flushing water and the necessary power source is available, it can be used not only in camper vans but also for other purposes, such as a nursing care toilet or an emergency toilet in the event of a disaster, and flushing water can be stored not only from tap water but also from rainwater, etc.
[0043] The configuration of the packing means 6 is also arbitrary, and in the above toilet device 1, the upper welding means 64 and the lower welding means 65 are each exemplified as comprising two upper and lower heaters 64a (65a), 64a (65a) and two upper and lower pressing members 64b (65b), 64b (65b), but the upper welding means 64 may be composed of one heater 64a and one pressing member 64b, and the lower welding means 65 may also be composed of one heater 65a and one pressing member 65b. The packaging material is not limited to a tubular film, and a single sheet of film may be used to seal and package gel-like wastewater in a bag shape.
[0044] Furthermore, the drain pipe 7 and the water supply pipe 32 may be flexible hoses that are flexible and can be bent freely, such as flexible hoses or accordion hoses. [Explanation of symbols]
[0045] 1 Toilet equipment 2 Western-style toilet 3. Cleaning water supply means 4 Pump Unit 5. Coagulant supply means Six Pack Means 7 Drain pipe 41 Water supply pump 42 Crushed discharge pump (crushed discharge means) 63 Welding and cutting means 64 Upper welding means 64a heater 64b Pressing member 65 Lower welding means 65a heater 65b Pressing member 66 Cutting means 66a heater 100 cylindrical film (packaging material)
Claims
1. a toilet bowl configured to be able to supply flush water; a crushing and discharging means for crushing waste discharged from the toilet bowl, mixing the crushed waste with flush water discharged from the toilet bowl, and discharging the mixture as wastewater; a coagulant supply means for supplying a coagulant for coagulating the wastewater; a packing means for sealingly packaging the wastewater discharged from the crushing and discharging means and the coagulant supplied from the coagulant supplying means in a bag using a packaging material; a drainage pipe for draining wastewater discharged from the crushing and discharging means to the packing means; A toilet device comprising:
2. The packaging material is a tubular film, and the packing means is provided with welding and cutting means, The toilet device described in claim 1, characterized in that the welding and cutting means comprises an upper welding means that seals the upper part of the tubular film by heat welding, a lower welding means that seals the lower part of the tubular film by heat welding, and a cutting means that is provided between the upper welding means and the lower welding means and cuts the tubular film.
3. 3. The toilet device according to claim 2, wherein the upper welding means and the lower welding means each include two strip-shaped heaters, one above the other.
Citation Information
Patent Citations
Toilet unit
JP2023063204A
Toilet unit
JP2023136593A