JP2008206695A - Portable toilet and filth receptacle used for it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable toilet and a filthy water receptacle used for it which achieve the curtailment of the number of parts and production costs, easier cleaning on the filthy water receptacle and the prevention of spillage of the filthy water on the filthy water receptacle. <P>SOLUTION: The portable toilet is provided with the outer frame body 5 of the toilet and the filthy water receptacle 7 which is housed in a housing part opened upward formed within the outer frame body 5 of the toilet. An excrement container 8 is so arranged as to be freely incoming or outgoing and housed into the filthy water receptacle 7 and the filthy water receptacle 7 is provided with a containerlike body 31 of the filthy water receptacle opened upward. The filthy water receptacle 7 is also provided with a flange part 32 which protrudes outward from the periphery part of the upper end opening of its body 31 so as to build a toilet seat carrier part 34 for the placement of the toilet seat 2. The flange part 32 is placed slidably on the periphery part of the upper end opening of the housing part 6 longitudinally. A weir part 50 is erected on the outer periphery of the flange part 32 of the filthy water receptacle 7 over the entire circumference of the flange part 32. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable toilet used mainly for nursing care and a waste receptacle used therefor.

  Conventionally, for example, a portable toilet as shown in Patent Document 1 has been used. As shown in FIG. 11, the portable toilet includes a toilet outer body 5, a container-like sewage receiver 7 housed in the toilet outer body 5 and fixed to the toilet outer body 5, and a flange of the sewage receiver 7. A slide member 60 slidably mounted in the front-rear direction on the portion 32, an excrement container 8 that is slidably received in the sewage receptacle 7 by placing the upper end on the slide member 60, and the sewage receptacle 7 A local cleaning device 9 fixed on the rear end portion of the flange portion 32 and a toilet seat 2 rotatably provided on the local cleaning device 9 are provided, and an elderly person or a physically handicapped person sits on the toilet seat 2 and has a waste container. In addition, the waste water that has flowed to the outside of the excrement container 8 can be received by the waste water receiver 7.

  In the state where the slide member 60 is disposed on the rear side, the rear end portion of the excrement container 8 is positioned below the front protruding portion of the local cleaning device 9 protruding forward from the rear edge of the upper end opening of the sewage receptacle 7. Stored well. Further, when the slide member 60 is arranged in the front side by sliding forward from this state, the excrement container 8 can be easily taken out from the front side of the portable toilet, and the excrement in the excrement container 8 can be easily removed. Can be thrown away.

By the way, in the portable toilet shown in Patent Document 1, it is necessary to provide a separate slide member 60 on the flange portion 32 of the sewage receptacle 7 in order to make the excrement container 8 slidable. Many manufacturing costs are high. Further, there is a possibility that sewage enters between the flange portion 32 of the sewage receiver 7 and the slide member 60, and the cleaning operation during this period is very troublesome. Further, the sewage receptacle 7 is fixed to the toilet casing 5 and cannot be easily removed, and the maintainability is poor. In addition, the sewage that has flowed on the flange portion 32 of the sewage receiver 7 may flow out from the outer edge of the sewage receiver 7.
JP 2006-87724 A

  The present invention has been invented in view of the above-described conventional problems, and the waste container is drawn forward without separately providing a member for sliding the waste container with respect to the waste water receiver on the waste water receiver. The excrement container can be placed at a position where it can be easily taken out, the number of parts and manufacturing costs can be reduced, the cleaning on the flange part of the sewage receiver can be facilitated, the maintainability can be improved, and the sewage on the flange part of the sewage receiver can be improved. It aims at providing the portable toilet which can prevent leaking from the outer periphery of a sewage receptacle, and the filth receptacle used for this.

  In order to solve the above-mentioned problems, a portable toilet according to the present invention includes a toilet bowl 5, a sewage receptacle 7 accommodated in a receptacle 6 formed in the toilet bowl 5 and opening upward, and the sewage receptacle. The sewage receptacle 7 is provided with a sewage receptacle 8 that is detachably stored in the sewage receptacle 7. A flange portion 32 having a toilet seat placing portion 34 for projecting and placing the toilet seat 2 is provided, and the flange portion 32 is slidable in the front-rear direction on the peripheral edge portion of the upper end opening of the storage portion 6 of the toilet casing 5. And a dam portion 50 is provided upright on the outer peripheral edge of the flange portion 32 of the sewage receptacle 7 over the entire circumference of the flange portion 32. Thus, by making the sewage receptacle 7 slidable in the front-rear direction with respect to the toilet casing 5, the excrement container 8 can be pulled forward together with the sewage receptacle 7, and the excrement container 8 can be easily disposed. Further, since the flange portion 32 of the sewage receptacle 7 is slidably mounted in the front-rear direction on the peripheral edge of the upper end opening of the storage portion 6, a member for sliding the excrement container 8 with respect to the sewage receptacle 7 is separately provided. There is no need. Further, the sewage receptacle 7 can be easily taken out from the storage portion 6 formed in the toilet outer shell 5. Moreover, the sewage on the flange part 32 of the sewage receiver 7 can be prevented from leaking from the outer periphery of the sewage receiver 7 by the weir part 50 erected on the peripheral part of the flange part 32 of the sewage receiver 7.

  A weir 50 provided on both sides of the front end of the flange 32 constitutes a thigh support 42 for supporting the thigh of a person seated on the toilet seat 2, and the upper surface of the thigh support 42 is placed on the toilet seat mounting portion 34. It is also preferable to arrange the toilet seat 2 at a height that is flush with the upper surface of the toilet seat 2 placed on the toilet seat. In this case, the thigh of the person seated on the toilet seat 2 is supported on the upper surface of the toilet seat 2 and is also supported on the upper surface of the thigh support portion 42 of the sewage receiver 7 that is flush with the upper surface of the toilet seat 2. The support area can be increased.

  It is also preferable to provide a slope inclined downward toward the upper end opening of the sewage receiver body 31 on the upper surface of the flange portion 32 of the sewage receiver 7. In this case, the sewage on the flange portion 32 can smoothly flow to the sewage receiver body 31 side, and the sewage can be further prevented from leaking from the outer periphery of the sewage receiver 7.

  It is also preferable to apply an antifouling treatment to the upper surface of the flange portion 32 of the sewage receiver 7. The upper surface of the flange part 32 can be kept clean.

  Moreover, the waste receptacle used for the portable toilet of this invention is the waste receptacle comprised by the waste water receptacle 7 and the excrement container 8 which the portable toilet 1 of any one of the said Claim 1 thru | or 4 has.

  In the invention according to claim 1, by making the sewage receptacle slidable in the front-rear direction with respect to the toilet casing, the excrement container can be pulled forward together with the sewage receptacle, and the excrement container can be easily removed. Moreover, since the flange part of the sewage receptacle is slidably mounted in the front-rear direction on the peripheral edge of the upper end opening of the storage part, a member for sliding the waste container with respect to the sewage receptacle needs to be provided separately on the sewage receptacle. The number of parts and the manufacturing cost can be reduced, and cleaning on the sewage receptacle becomes easy. In addition, the sewage receptacle can be easily taken out from the storage part formed in the toilet outer body, and the maintainability can be improved. Moreover, it can prevent that the sewage on the flange part of a sewage receptacle leaks out from the outer periphery of a sewage receptacle by a dam part.

  Further, in the invention according to claim 2, in addition to the effect of the invention according to claim 1, the support area of the thigh of the person seated on the toilet seat can be increased, and the user can sit on the toilet seat in a more stable posture. And the sewage catcher is less likely to break when seated.

  Further, in the invention according to claim 3, in addition to the effect of the invention according to claim 1 or claim 2, the sewage on the flange portion can be smoothly flowed to the sewage receiver body side, and the sewage is discharged from the outer periphery of the sewage receiver. Leakage can be further prevented.

  In the invention according to claim 4, in addition to the effect of the invention according to any one of claims 1 to 3, the upper surface of the flange portion can be further cleaned by the antifouling treatment.

  Moreover, in the invention which concerns on Claim 5, the waste receptacle comprised with the waste-water receptacle and excrement container which the portable toilet of any one of the said Claim 1 thru | or 4 has can be provided.

  Hereinafter, a portable toilet of the present invention will be described based on embodiments shown in the accompanying drawings. In the following description, the person sitting on the toilet seat 2 of the portable toilet 1 is used as a reference, and the front side as viewed from the seated person is referred to as the front and the rear side as the rear.

  The portable toilet 1 of an example of this embodiment is a chair type, and is formed in a toilet structure 5 having a toilet outer body 5, a leg 11, and an armrest 12 as shown in FIGS. 1 to 4, and the toilet outer body 5. The sewage receiver 7 stored in the storage unit 6 opened upward, the excrement container 8 stored in the sewage receiver 7, the local cleaning device 9, the toilet seat 2, and the tank receiver 10, The waste container 3 is composed of the waste container 8.

  The chair structure 4 is made of wood, and the sewage receptacle 7, the waste container 8, and the tank receptacle 10 are made of polypropylene resin. In addition, you may shape | mold the sewage receptacle 7, the excrement container 8, and the tank receptacle 10 with thermoplastic synthetic resins, such as ABS resin, AS resin, a polycarbonate, and polyethylene.

  A toilet bowl body 5 constituting the toilet bowl is surrounded by side plates 13 and 13 on both left and right sides, a front plate 14 installed between the front ends of the side plates 13 and 13, and both side plates 13 and 13 and the front plate 14. A top plate 15 is provided to cover the upper portion of the space. A rear plate 16 is installed at the lower part of the rear part of the side plates 13, 13, and a crosspiece 17 is installed between the lower ends of the rear end portions of the side plates 13, 13 located behind the rear plate 16. Yes, the toilet outer body 5 is formed in a substantially box shape.

  A storage unit 6 is formed on the inner side of the toilet casing 5, which is a space surrounded by the side plates 13, 13, the front plate 14, the rear plate 16, and the top plate 15. An opening 15a (see FIG. 8) is formed as the upper end opening. A leg 11 is provided on each of the side plates 13, 13 of the toilet bowl 5, and the toilet bowl 5 is arranged on the floor via the legs 11 on both sides. The toilet outer body 5 is attached to each leg 11 so that its height can be adjusted. As shown in FIG. 4, a caster 20 is provided at the rear end of the ground plate 19 provided at the lower end of each leg 11, and a portable toilet is provided by rolling the roller 20a of each caster 20 on the floor surface. 1 can be moved easily.

  A back frame 21 is erected on the rear end portion of the toilet casing 5, and a backrest 22 is attached to the upper front side of the back frame 21. On both sides of the toilet casing 5, armrests 12 for placing an elbow of a person seated on the toilet seat 3 are disposed, and the rear end portion of each armrest 12 is connected to a back frame 21, and each armrest The front portion of 12 is connected to the side plate 13 of the toilet outer shell 5 via a support column 25.

  As shown in FIG. 4, a tank receiver 10 is provided in the rear part of the toilet casing 5. The tank receiver 10 includes a receiving portion 26 and a hooking portion 27 provided at the upper end on the front side. The receiving portion 26 stores a tank 28 for storing water supplied to the local cleaning device 9. The toilet bowl 5 is supported by being hooked on the rear portion of the opening 15 a of the top plate 15.

  A local cleaning device 9 is placed and fixed on a rear portion of the opening 15a of the top plate 15 constituting the upper surface of the toilet bowl outer body 5 via a hook 27, and the local cleaning device 9 and the toilet outer body 5 are fixed. The top plate 15 holds the hook 27. The front part of the local cleaning device 9 is a front projecting part 9 a that projects forward from the rear edge of the opening 15 a of the top plate 15. A lower portion of the forward projecting portion 9a is located in the storage portion 6, and a local cleaning nozzle 30 for cleaning a local portion of a person seated on the toilet seat 2 is provided in the same portion. In FIG. 1, reference numeral 29 denotes an operating unit of the local cleaning device 9. 2 and 9, the illustration of the operation device 29 is omitted for simplification of the drawings.

  A rear end portion of the toilet seat 2 is rotatably attached to the local cleaning device 9. As shown in FIG. 9, a seat body 24 is placed on the toilet seat 2 so as to close the opening of the toilet seat 2 as needed, and this seat body 24 is used as a seat for a user to sit on.

  The sewage receptacle 7 shown in FIG. 6 is accommodated in the accommodating part 6 of the toilet bowl outer body 5 through the opening 15a so as to be freely accessible. The sewage receiver 7 includes a container-like sewage receiver main body 31 that opens upward, and a flange portion 32 that protrudes integrally outward from the peripheral edge of the upper end opening of the sewage receiver main body 31. The sewage receptacle 7 has a flange portion 32 slidably mounted in the front-rear direction on the edge portions on both sides of the upper end opening of the storage portion 6 of the toilet casing 5 (that is, the both side edges of the opening portion 15a of the top plate 15). The sewage receptacle 7 is supported and moved in the front-rear direction with respect to the toilet casing 5 so that it can be placed in the storage position shown in FIG. 4 and the extraction position shown in FIG.

  As shown in FIG. 6, the flange portion 32 is provided over the entire circumference of the peripheral edge portion of the upper end opening of the sewage receiving body 31, and the inner peripheral edge portion (that is, the portion constituting the peripheral edge portion of the upper end opening of the sewage receiving body 31). A container mounting part 33 having a ring shape in plan view, a generally U-shaped toilet seat mounting part 34 protruding outward from an outer peripheral edge excluding the rear end of the container mounting part 33, and a toilet seat mounting An upward projecting portion 40 provided at the front edge of the portion 34 is provided.

  A locking rib 35 is erected on the inner periphery of the container mounting portion 33, and a rib notch 36 is formed at the rear edge of the locking rib 35. The rear end portion of the container mounting portion 33 and the rear portions on both sides continuous thereto are formed wider than the other portions, and the outer peripheral portion of the same portion is a handle mounting portion 37. On the outer periphery of the container mounting portion 33 including the handle mounting portion 37, a rising wall portion 38 is provided over the entire circumference, and a wall notch 39 is formed at the rear edge portion of the rising wall portion 38. ing.

  The toilet seat mounting portion 34 protrudes outward from the upper end of the outer peripheral edge portion excluding the rear portion of the upright wall portion 38 and is one step higher than the container mounting portion 33. The upward projecting portion 40 connected to the front edge of the toilet seat placing portion 34 projects upward from the toilet seat placing portion 34. Further, upward ribs 41 are provided over the entire length of the outer peripheral edge except the front edge provided with the upper protruding portion 40 of the toilet seat mounting portion 34. That is, in this example, the rising wall portion 38 erected on the outer peripheral edge portion of the flange portion 32, the upward rib 41, and the upward projecting portion 40 constitute the weir portion 50 over the entire circumference of the flange portion 32 of the sewage receiver 7. Yes.

  The left and right side portions of the upper protrusion 40 constitute a thigh support portion 42 that is one step higher than the center portion. The upper surface of each thigh support part 42 is located at the same level as the upper surface of the front part of the toilet seat 2 placed on the toilet seat placing part 34, and when the toilet seat 2 is placed on the toilet seat placing part 34, The upper surface of each thigh support part 42 is flush. As a result, the thighs of the person seated on the toilet seat 2 are supported on the upper surface of the toilet seat 2 and are also supported on the upper surface of the thigh support portion 42 of the sewage receiver 7 that is flush with the upper surface of the toilet seat 2. Support area increases. Therefore, the user can sit on the toilet seat 2 in a more stable posture, and the toilet seat 2 and the sewage receptacle 7 are less likely to be damaged when sitting. Each thigh support portion 42 is formed with a fitting recess 43 that opens upward, and a fitting portion (not shown) that projects downward from the above-described seat body 24 is fitted into the fitting recess 43. And the seat 24 can be positioned.

  The central part in the left-right direction of the upper protruding part 40 is shorter than the front end part of the toilet seat 2 placed on the toilet seat placing part 34, and a finger insertion recess 44 is formed thereabove. As a result, it is possible to put the fingers into the finger insertion recess 44 from the front of the sewage receiver 7 and to hang the toilet seat 2 by placing the fingers on the lower surface of the front end portion of the toilet seat 2 placed on the toilet seat placing portion 34. Yes. Further, a finger-hanging portion 45 that slightly protrudes forward is formed at the center in the left-right direction of the front surface of the upper protrusion 40 so that the sewage receiver 7 can be pulled forward by placing a finger on the lower end of the finger-hanging portion 45. It has become.

  Further, as shown in FIG. 10, downward ribs 51 are provided on both side edges of the flange portion 32, and open downward between the downward ribs 51 and the rising wall portions 38 located on both sides of the flange portion 32. A guide groove 52 is formed. The toilet seat placing portion 34 constituting the upper bottom portion of the guide groove 52 of the sewage receiver 7 is placed on the top plate 15 of the toilet bowl outer body 5. Further, both side portions of the top plate 15 are accommodated in the guide grooves 52 on both sides of the sewage receptacle 7 so as to be slidable in the front-rear direction, so that the sewage receptacle 7 is slidable with respect to the toilet casing 5. Yes.

  The excrement container 8 shown in FIG. 7 is provided with a flange 46 having an L-shaped cross section projecting outward at the upper peripheral edge of the upper end, and the engagement projecting downward on the outer peripheral edge of the flange 46. A stop projection 47 is provided. A handle 48 is rotatably installed between rear upper ends on both sides of the excrement container 8. As shown in FIG. 4, the excrement container 8 is configured such that the collar portion 46 is placed on the container placement portion 33 of the sewage receiver 7 and the locked protrusion 47 is locked to the locking rib 35 of the sewage receiver 7. It is supported on the sewage receiver 7 and stored in the sewage receiver body 31. When the waste container 8 is housed and supported in the sewage receptacle 7 as described above, the handle 48 is tilted behind the excrement container 8 and placed on the handle placement portion 37 of the sewage receptacle 7 as shown in FIG. , And can be stored between the rising wall portion 38 and the locking rib 35. Further, a container notch 49 is formed at the upper end of the rear surface portion of the excrement container 8, and the container notch 49 is in a state in which the excrement container 8 is stored and supported in the sewage receptacle 7 and the rib notch 36 of the sewage receptacle 7 It overlaps and faces the wall cutout 39.

  As shown in FIG. 4 and the like, a lid 53 that closes the upper end opening of the excrement container 8 is detachably fitted to the upper end of the excrement container 8 as necessary. A lid notch 54 is formed at the upper end of the surface portion.

  Here, as shown in FIG. 4, when the sewage receiver 7 is moved rearward and the sewage receiver main body 31 is disposed at the storage position where the sewage receiver main body 31 is disposed at the rearmost side in the storage unit 6, And the handle 48 placed on the handle placing part 37 is located behind the front edge of the front protruding part 9a of the local cleaning device 9 and below the front protruding part 9a of the local cleaning apparatus 9 The rear end is located. At this time, the lower part of the front protrusion 9 a of the local cleaning device 9 faces the excrement container 8. As a result, the excrement container 8 is disposed at a position below the opening of the toilet seat 2 that reliably receives excrement and water sprayed from the local washing nozzle 30.

  Further, as shown in FIG. 5, when the sewage receiver 7 is moved forward from the storage position and the sewage receiver main body 31 is disposed at the pull-out position disposed at the foremost side of the storage unit 6, the excrement container 8 and the handle mount A handle 48 placed on the placement unit 37 is positioned in front of the front edge of the local cleaning device 9. Therefore, by placing the toilet seat 2 upright and placing the sewage receptacle 7 in the pull-out position, the handle 48 of the excrement container 8 stored in the sewage receptacle 7 can be gripped, and the rear end of the upper end of the excrement container 8 is a local cleaning device. 9, the excrement container 8 can be taken out from the sewage receptacle 7 without being caught by the front projecting portion 9 a, and the excretion container 8 can be easily taken out. Further, the lid 53 fitted in the excrement container 8 can be easily removed. Furthermore, in this case, the upper end rear edge of the sewage receiver 7 is located below the front protruding portion 9a of the local washing device 9, but is located in front of the storage position. 5 can be easily taken out from the storage section 6.

  When the sewage receiver 7 is pulled out from the storage position shown in FIG. 4 to the drawing position shown in FIG. 5, the lower part of the front protruding portion 9a of the local cleaning device 9 passes through the lid cutout 54 and the container cutout 49. Thus, the sewage receptacle 7 can be slid without interfering with the lower portion of the front protruding portion 9a of the local cleaning device 9 as described above.

  In order to use the portable toilet 1, the seat 2 on the toilet seat 2 is removed, and the sewage receptacle 7 is placed in the storage position shown in FIG. 4 and seated on the toilet seat 2 placed on the sewage receptacle 7 for excretion. Use is added to the container 8. Further, in order to discard the excrement in the excrement container 8, as described above, the sewage receptacle 7 is arranged at the extraction position, and the excrement container 8 is taken out from the sewage receptacle 7.

  In the portable toilet 1 of the present invention described above, the waste container 7 is slid in the front-rear direction so that the excrement container 8 is pulled forward together with the waste water receiver 7 so that the excrement container 8 can be easily taken out. Can be placed. Further, since the flange portion 32 of the sewage receptacle 7 is slidably mounted in the front-rear direction on the peripheral edge of the upper end opening of the storage portion 6, a member for sliding the excrement container 8 with respect to the sewage receptacle 7 is separately provided. There is no need, the number of parts and the manufacturing cost can be reduced, and cleaning on the sewage receptacle 7 becomes easy. Further, as shown in FIG. 8, the sewage receptacle 7 can be taken out from the storage portion 6 formed in the toilet bowl outer body 5 to improve maintenance, and the sewage receptacle 7 can be taken out and slidable in the front-rear direction. It becomes easy by doing. Further, since the dam 50 is provided upright at the peripheral edge of the flange portion 32 of the sewage receiver 7, the sewage on the flange portion 32 of the sewage receiver 7 is transferred to the outer peripheral edge of the sewage receiver 7. Can be prevented from leaking out.

  Here, it is preferable to provide a slope inclined downward toward the upper end opening of the sewage receiver main body 31 on the upper surface of the flange portion 32 of the sewage receiver 7. In this case, the sewage receiver main body 31 smoothly transfers the sewage on the flange portion 32. The sewage can be prevented from leaking from the outer periphery of the sewage receiver 7. Moreover, it is preferable to perform a water-repellent treatment on the upper surface of the sewage receiver 7 or to apply an anti-stain treatment by applying a photocatalyst. In this case, the upper surface of the flange portion 32 can be kept clean.

It is a whole perspective view showing a portable toilet of an example of an embodiment of the invention. The portable toilet same as the above is shown, (a) is a plan view, (b) is a side view, and (c) is a bottom view. It is AA 'sectional drawing of Fig.2 (a). It is BB 'sectional drawing of Fig.2 (a). It is BB 'sectional drawing of Fig.2 (a) which shows the state which has arrange | positioned the sewage receptacle of a portable toilet same as the above in the drawer position. It is a perspective view of a sewage receptacle same as the above. It is a perspective view of the excrement container same as the above. It is BB 'sectional drawing of Fig.2 (a) which shows the state which removed the sewage receptacle from the portable toilet same as the above. The state which mounted the seat on the toilet seat of the portable toilet same as the above is shown, (a) is a front view, (b) is a side view. It is a principal part enlarged view of FIG. It is a disassembled perspective view of the conventional portable toilet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable toilet 2 Toilet seat 5 Toilet case 7 Sewage receptacle 8 Excrement container 31 Sewage receptacle main body 32 Flange part 34 Toilet seat mounting part 42 Thigh support part 50 Weir part

Claims (5)

  A toilet bowl body, a sewage receptacle housed in an upwardly opening storage portion formed in the toilet bowl body body, and a waste container that is detachably housed in the sewage bowl receptacle, the sewage receptacle opening upward A container-like sewage receptacle main body, and a flange portion having a toilet seat mounting portion for projecting outward from a peripheral edge of the upper end opening of the sewage receptacle main body, and placing the toilet seat thereon, the flange portion being the toilet bowl It is slidably mounted in the front-rear direction on the peripheral edge of the upper end opening of the storage part of the outer shell, and a dam part is provided upright on the outer peripheral edge of the flange part of the sewage receptacle. A portable toilet.   A thigh support portion for supporting the thigh of a person seated on the toilet seat is configured by a dam portion provided on both sides of the front end portion of the flange portion, and the upper surface of the thigh support portion is placed on the toilet seat placement portion of the flange portion The portable toilet according to claim 1, wherein the portable toilet is disposed at a height that is flush with an upper surface of the toilet seat.   The portable toilet according to claim 1 or 2, wherein a slope inclined downward toward the upper end opening of the sewage receiver main body is provided on the upper surface of the flange portion of the sewage receiver.   The portable toilet according to any one of claims 1 to 3, wherein the upper surface of the flange portion of the sewage receptacle is subjected to antifouling treatment.   A filth receptacle comprising the sewage receptacle and excrement container of the portable toilet according to any one of claims 1 to 4.

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