JP2021169727A - Mobile toilet - Google Patents

Abstract

To provide a mobile toilet that can maintain a good right-left balance of a vehicle.SOLUTION: A mobile toilet 1 comprises: a trailer 50 that can move in a front-back direction; sanitary fixtures 21, 22, 26 and 29 each placed on the trailer 50; a water supply tank 12 that stores fresh water to be supplied to the sanitary fixtures 21, 22, 26 and 29; and a drainage tank 13 that stores sewage discharged from the sanitary fixtures 21, 22, 26 and 29. The water supply tank 12 and the drainage tank 13 are arranged at the center in the right-left direction orthogonal to a moving direction of the trailer 50.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to mobile toilets.

Patent Document 1 discloses a conventional mobile toilet. This mobile toilet uses a circulation system that purifies the wastewater from the toilet bowl with a septic tank and supplies water to the toilet bowl.

Japanese Unexamined Patent Publication No. 11-208359

Since the mobile toilet of Patent Document 1 uses a circulation system that purifies wastewater from the toilet bowl and supplies water to the toilet bowl, the space for installing a septic tank or the like tends to be large. As a result, the space that can be used as a toilet room of this mobile toilet becomes small, which may make it difficult for wheelchair users to use it. Therefore, by using a water supply tank that stores fresh water supplied to the toilet bowl and a drainage tank that stores sewage from the toilet bowl, the water supply and drainage system should be simplified and the space that can be used as a toilet room should be increased. Can be considered. In this case, the water supply tank and the drainage tank become heavy when fresh water and sewage are stored, and the amount of fresh water and sewage stored in each tank increases or decreases. Therefore, the vehicle may tilt depending on the position where the water supply tank and the drainage tank are arranged. There is. In particular, if the vehicle is tilted to the left or right, it may hinder the movement of the vehicle. Therefore, it is important to arrange the water supply tank and the drainage tank in consideration of the weight balance in the left-right direction.

The present disclosure has been made in view of the above-mentioned conventional circumstances, and it is an issue to be solved to provide a mobile toilet capable of maintaining a good left-right balance of the vehicle.

The mobile toilet of the present disclosure includes a vehicle that can move in the front-rear direction, sanitary fixtures arranged in the vehicle, a water supply tank that stores fresh water supplied to the sanitary fixtures, and sewage discharged from the sanitary fixtures. The water supply tank and the drainage tank are arranged at a central portion in the left-right direction orthogonal to the moving direction of the vehicle.

It is a vertical sectional view of the mobile toilet of Embodiment 1 as seen from the left. It is a top view which shows the mobile toilet of Embodiment 1. FIG. FIG. 5 is a vertical cross-sectional view of the mobile toilet of the first embodiment as viewed from the front. It is a side view which looked at the mobile toilet of Embodiment 1 from the left. It is a perspective view which shows the toilet room of Embodiment 1. FIG.

<Embodiment 1>
Embodiment 1 embodying the mobile toilet 1 of the present disclosure will be described with reference to the drawings. In the following description, in the vertical direction, the positive direction of the X-axis shown in FIGS. 1 and 4 is the upward direction, and the negative direction of the X-axis is the downward direction. Regarding the left-right direction, the positive direction of the Z-axis shown in FIGS. 2 and 3 is the left direction, and the negative direction of the Z-axis is the right direction. As for the front-rear direction, the positive direction of the Y-axis shown in FIGS. 1, 2 and 4 is the front direction, and the negative direction of the Y-axis is the rear direction.

As shown in FIGS. 1 to 4, the mobile toilet 1 includes a trailer 50 which is a vehicle. The trailer 50 has a substantially rectangular parallelepiped-shaped packing box 3 attached to the chassis 51 and long in the front-rear direction. The trailer 50 is towed by a tractor or the like (not shown). The chassis 51 is formed so as to extend in the front-rear direction. The chassis 51 includes a connecting portion 52 at the front end portion. The connecting portion 52 can be connected to the tractor.

Two left and right wheels 53 are rotatably attached to the front and rear central portions of the chassis 51. The trailer 50 is movable in the front-rear direction. Each wheel 53 is movable in the vertical direction with respect to the chassis 51. Specifically, when each wheel 53 moves to the lowest position within the movable range with respect to the chassis 51, the central portion of each wheel 53 is located at the lower end of the chassis 51. The trailer 50 can travel with each wheel 53 moved to this position. When each wheel 53 moves to the top within the movable range with respect to the chassis 51, the lower end of each wheel 53 is either aligned with the lower end of the chassis 51 or above the lower end of the chassis 51. become. With each wheel 53 moved to this position, the trailer 50 is installed in a non-moving state.

As shown in FIGS. 1 and 2, the mobile toilet 1 includes an equipment room 10, a toilet room 20, and an anterior room 30 provided in the packing box 3. The mobile toilet 1 includes a slope portion 40. The equipment room 10, the toilet room 20, and the front room 30 are provided side by side in the front-rear direction. The equipment room 10 is arranged at the front of the packing box 3. The toilet room 20 is arranged adjacent to the equipment room 10. The anterior chamber 30 is adjacent to the toilet chamber 20 and is arranged at the rear of the packing box 3. The mobile toilet 1 includes a ventilation fan F1 that exhausts air in the equipment room 10, and a ventilation fan F2 that exhausts air in the toilet room 20 and the front room 30.

As shown in FIGS. 1 and 3, the equipment room 10 houses a box 11, a water supply tank 12, a drainage tank 13, and a water supply pump 14. The box 11 is divided into upper and lower tiers. The box 11 is fixed to the central portion of the equipment room 10 in the left-right direction (see FIG. 3). The left and right walls, the upper wall, and the rear wall of the box 11 are formed of flat plates and are closed, and the front side is open. The equipment room 10 has a door 10A that opens and closes the opening of the box 11 (see FIG. 1).

Each of the right wall portion and the left wall portion of the equipment room 10 is formed with an opening that allows access to the equipment room. The right wall is provided with a right door 10B that opens and closes the opening of the right wall, and the left wall is provided with a left door 10C that opens and closes the opening of the left wall (FIG. 2). reference.). The right side door 10B is opened to enter and exit the right side area 10D in the equipment room 10 through the opening of the right side wall portion. The area 10D on the right side in the equipment room 10 is mainly used as a work space for installing and maintaining the toilet bowl 22. The left side door 10C is opened to enter and exit the left side area 10E in the equipment room 10 through the opening of the left side wall portion. The area 10E on the left side in the equipment room 10 is mainly used as a work space for sewage distribution and installation and maintenance of 21. In the present disclosure, one area 10D is a work space for installing and maintaining the toilet bowl 22, and the other area 10E is a work space for installing and maintaining the toilet bowl 21.

The water supply tank 12 is housed in the shelf 11A on the upper side of the box 11. The water supply tank 12 stores fresh water to be supplied to the sanitary fixtures 21, 22, 26, and 29, which are sanitary fixtures to be described later, to the waste distribution 21, toilet bowl 22, hand wash basin 26, and wash basin 29 (hereinafter, also referred to as sanitary fixtures 21, 22, 26, 29). The water supply tank 12 and the sanitary fixtures 21, 22, 26, 29 communicate with each other by a water supply channel 14A. Fresh water stored in the water supply tank 12 flows into each of the sanitary fixtures 21, 22, 26, and 29 via the water supply channel 14A.

The drainage tank 13 is housed in the shelf 11B on the lower side of the box 11. The sanitary fixtures 21, 22, 26, 29 and the drainage tank 13 communicate with each other by drainage channels 13A and 13B. The drainage tank 13 receives the sewage discharged from each of the sanitary fixtures 21, 22, 26, and 29, and stores the inflowed sewage. The water supply tank 12 and the drainage tank 13 have the same capacity. The drainage tank 13 can be pulled out of the packing box 3 through the opening on the front side of the box 11 by opening the door 10A of the equipment room 10. The drainage channel 13A is formed by a flexible hose, and the drainage tank 13 can be pulled out of the packing box 3 with the hose connected.

The water supply tank 12 is arranged above the drainage tank 13. As a result, even if the sewage leaks from the drainage tank 13, it is possible to prevent the sewage from entering the water supply tank 12 or flowing into the water supply tank 12. The water supply tank 12 and the drainage tank 13 are arranged vertically side by side in the box 11. As a result, even if the amount of fresh water stored in the water supply tank 12 changes and the amount of sewage stored in the drainage tank 13 changes, the weight balance in the left-right direction of the trailer 50 does not change. The water supply tank 12 and the drainage tank 13 are housed in a box 11 partitioned into two upper and lower stages, and are arranged at a central portion in the left-right direction orthogonal to the moving direction of the trailer 50. As a result, areas 10D and 10E are secured as spaces for maintenance work in the equipment room 10. Areas 10D and 10E as working spaces are provided on both the left and right sides of the water supply tank 12 and the drainage tank 13. The areas 10D and 10E are located on the left and right sides of the water supply tank 12 and the drainage tank 13, and are located in the space behind the sanitary fixtures (sewage distribution 21 and toilet bowl 22). The term "rearward from the sanitary fixture" as used herein means a position on the opposite side of the sanitary fixture from the user who uses the sanitary fixture.

In the drainage tank 13, in addition to fresh water flowing from the water supply tank 12 via the sanitary fixtures 21, 22, 26, 29, human waste, roll paper, and the like flow in. Therefore, the water supply tank 12 stores a smaller amount of fresh water than the capacity of the drainage tank 13. As a result, even if all the fresh water stored in the water supply tank 12 flows into the drainage tank 13 together with human waste, roll paper, etc., it is possible to prevent the drainage tank 13 from overflowing with sewage.

A water level sensor (not shown) is provided in each of the water supply tank 12 and the drainage tank 13. The water level sensor in the water supply tank 12 is configured to output a water level drop signal indicating that the water level is lower than the predetermined water level when the water level of the fresh water stored in the water supply tank 12 becomes lower than the predetermined water level. There is. The water level sensor in the drainage tank 13 is configured to output a water level increase signal indicating that the water level is higher than the predetermined water level when the water level of the sewage stored in the drainage tank 13 becomes higher than the predetermined water level. There is. A notification unit (not shown) is provided to notify the outside of the decrease in the water level in the water supply tank 12 and the increase in the water level in the drainage tank 13 based on the water level decrease signal and the water level increase signal. The notification unit notifies the outside of the timing of replenishing the water supply tank 12 with fresh water and the timing of extracting the sewage stored in the drainage tank 13.

The water supply pump 14 is arranged on the right side of the box 11 in the equipment room 10 (see FIG. 3). The water supply pump 14 is provided in the middle of the water supply channel 14A. The water supply channel 14A branches on the downstream side of the water supply pump 14 so as to communicate with the sanitary fixtures 21, 22, 26, 29 (see FIG. 2).

The operation of the water supply pump 14 is controlled by a control unit (not shown) configured by an information processing device such as a microcomputer. The control unit is provided in each sanitary fixture 21, 22, 26, 29, and drives the water supply pump 14 when a signal for opening the on-off valve communicating with the water supply channel 14A is input. The equipment room 10 is arranged with a generator (not shown) that supplies electric power to the water supply pump 14, the ventilation fans F1, F2, and the like.

As shown in FIG. 5, the toilet room 20 includes a first cabinet 20A, a second cabinet 20B, a sewage distribution 21, a toilet bowl 22, a backrest 23, a flip-up handrail 24, a toilet paper holder 25, a hand wash basin 26, and a wash basin 29. Etc. The first cabinet 20A has a box shape and is installed with its back surface in contact with the first wall portion 20C rising to the right side of the toilet room 20. The second cabinet 20B has a box shape that is one size larger than the first cabinet 20A, and is installed with its back surface in contact with the second wall portion 20D that separates the toilet room 20 and the equipment room 10.

The sewage distribution 21 is attached to the left side of the front surface of the second cabinet 20B. The front surface of the second cabinet 20B referred to here is a surface facing backward in the second cabinet 20B. The toilet bowl 22 is attached to the front right side of the second cabinet 20B. The backrest 23 is in front of the second cabinet 20B and is attached above the toilet bowl 22. The flip-up handrail 24 and the toilet paper holder 25 are in front of the second cabinet 20B and are attached between the waste disposal 21 and the toilet bowl 22. In the second cabinet 20B, a mirror cabinet 20K whose back surface is in contact with the second wall portion 20D is placed on the upper surface. The mirror cabinet 20K is located above where the sewage 21 is attached. In the left-right direction, the two sanitary appliances, the sewage disposal 21 and the toilet bowl 22, are arranged side by side on the left and right sides of the water supply tank 12 and the drainage tank 13 (see FIG. 2). As a result, when the waste distribution 21 and the toilet bowl 22 are maintained from the front (that is, the waste distribution 21 and the back of the toilet bowl 22), the water supply tank 12 and the drainage tank 13 do not interfere with the maintenance.

As shown in FIG. 2, the second cabinet 20B houses the first transport device 20H and the second transport device 20J. The first transport device 20H sews the water inlet port and communicates it with the drainage connection portion of 21. The first transport device 20H communicates the drainage port with the drainage channel 13A. The first transport device 20H drains the sewage flowing from the sewage distribution 21 into the drainage channel 13A by the pump function.

The second transport device 20J communicates the water inlet port with the drainage connection portion of the toilet bowl 22 and the drainage channel 13B into which the sewage from the hand wash basin 26 and the wash basin 29 flows. The second transport device 20J communicates the drainage port with the drainage channel 13A. The second transport device 20J drains the sewage flowing from the toilet bowl 22, the hand wash basin 26, and the wash basin 29 into the drainage channel 13A by the pump function. The operations of the first transfer device 20H and the second transfer device 20J are controlled by the control unit. When the amount of sewage flowing into the first transport device 20H and the second transport device 20J reaches a predetermined amount, the control unit drives the pump functions of the first transport device 20H and the second transport device 20J.

As shown in FIG. 5, the hand wash basin 26 is provided near the toilet bowl 22 of the first cabinet 20A (that is, on the front side of the toilet room 20). A toilet paper holder 27 and a fixed handrail 28 are attached to the front surface of the first cabinet 20A located below the hand wash basin 26. The front surface of the first cabinet 20A referred to here is a surface facing left in the first cabinet 20A. The wash basin 29 is provided at a position away from the toilet bowl 22 of the first cabinet 20A (that is, behind the toilet room 20).

In each of the sanitary fixtures 21, 22, 26, 29, fresh water is supplied from the water supply tank 12 by the user operating an operation unit (not shown). The operation unit is in the form of a push button in the sewage distribution 21 and the toilet bowl 22, and in the form of a sensor that detects an object such as a user's hand in the hand wash basin 26 and the wash basin 29. Each operation unit outputs a water discharge signal to the control unit when it is operated or detects the approach of an object such as a user's hand.

When cleaning the toilet bowl 22, when the operation unit is operated, the on-off valve provided in the toilet bowl 22 opens. Along with the operation of the operation unit, the water discharge signal output from the operation unit is input to the control unit, and the control unit starts the operation of the water supply pump 14. When the water supply pump 14 operates, fresh water flows from the water supply tank 12 into the toilet bowl 22 via the water supply channel 14A. The fresh water that has flowed into the toilet bowl 22 flows into the second transport device 20J as sewage after cleaning the toilet bowl 22. When the amount of sewage flowing into the second transport device 20J reaches a predetermined amount, the control unit drives the pump function, and the sewage flows into the drainage tank 13 via the drainage channel 13A and stores the sewage. When the sewage inside the second transport device 20J is discharged, the control unit stops the pump function of the second transport device 20J. When a predetermined time elapses after the operation of the operation unit, the on-off valve of the toilet bowl 22 is closed and the operation of the water supply pump 14 is stopped by the control unit. In this way, the cleaning of the toilet bowl 22 is completed. When cleaning the sewage 21, the water supply pump 14 and the first transport device 20H are driven in the same manner to perform cleaning. When the operation handle provided on the 21 is operated to open the on-off valve, the water supply pump 14 is operated by the control unit, and when the operation handle is operated to close the on-off valve, the water supply pump 14 is operated by the control unit. Stop. In this way, fresh water is discharged from the water discharge portion of the sewage distribution 21.

When using the hand wash basin 26 and the wash basin 29, the on-off valve provided in the hand wash basin 26 and the wash basin 29 opens while the sensor detects the user's hand and the like, and the user's hand and the like are opened. When the sensor stops detecting, the on-off valves provided in the hand wash basin 26 and the wash basin 29 are closed. While the sensor detects the user's hand or the like, a water discharge signal from the operation unit continues to be input to the control unit, and the control unit continues the operation of the water supply pump 14. In this way, fresh water is discharged from the water discharge portions provided in the hand wash basin 26 and the wash basin 29. The sewage flowing out from the hand wash basin 26 and the wash basin 29 flows into the drainage tank 13 through the drainage channel 13A by the second transport device 20J and is stored. As described above, the control unit drives the pump function when the amount of sewage flowing into the second transport device 20J reaches a predetermined amount, and when the sewage inside the second transport device 20J is discharged, the control unit of the second transport device 20J Stop the pump function.

As shown in FIG. 2, the toilet room 20 and the front room 30 are separated by a third wall portion 20E. The third wall portion 20E is provided with a first entrance 20F opened between the toilet room 20 and the front room 30 in order to enter and exit the toilet room 20 and the front room 30. The first doorway 20F is provided with a first door 20G that opens and closes the first doorway 20F. The first door 20G opens and closes the first doorway 20F by sliding in the direction A (that is, the left-right direction) along the third wall portion 20E. The first door 20G is a sliding door.

The anterior chamber 30 has a folding bed 31 and a mirror 32. The folding bed 31 is installed along the fourth wall portion 30A rising to the right side of the front chamber 30. The bed body 31A of the folding bed 31 is placed along the fourth wall 30A when not in use, and parallel to the floor surface of the anterior chamber 30 when in use. NS. The state in which the bed body 31A is parallel to the floor surface of the front chamber 30 is not shown. The mirror 32 is attached to a fifth wall portion 30B that rises to the rear side of the anterior chamber 30. The fifth wall portion 30B stands up on the opposite side of the third wall portion 20E with the space in the anterior chamber 30 interposed therebetween. The fifth wall portion 30B and the third wall portion 20E are substantially parallel to each other. The mirror 32 is arranged in front of the first doorway 20F.

The sixth wall portion 30C stands up on the left side of the front chamber 30. The sixth wall portion 30C extends in the front-rear direction. The sixth wall portion 30C is formed by opening a second entrance / exit 30D for entering / exiting the outside of the mobile toilet 1 and the front chamber 30. That is, the front chamber 30 is provided with the second entrance / exit 30D. The second doorway 30D is provided with a second door 30E. The second door 30E has, for example, a bellows shape, and opens and closes the second doorway 30D by sliding in the direction B (that is, the front-rear direction) along the sixth wall portion 30C.

As shown in FIGS. 2 and 4, the slope portion 40 has a landing 41 and a slope portion main body 42. The slope portion 40 is arranged along the side surface of the trailer 50 on the side forming the second entrance / exit 30D (see FIG. 4). The lower surface of the slope portion 40 is located at substantially the same height as the lower end of the chassis 51 (see FIG. 4). As a result, when the lower end of each wheel 53 is aligned with the lower end of the chassis 51 or higher than the lower end of the chassis 51, the lower end of the chassis 51 and the lower surface of the slope portion 40 are brought to the ground. The trailer 50 is installed in a state of contact and not moving. The landing 41 has a square shape when viewed from above, and is arranged adjacent to the left side of the anterior chamber 30 (see FIG. 2). The upper surface of the landing 41 of the slope portion 40 is substantially the same height as the floor surface of the front chamber 30, and is continuous with the second entrance / exit 30D (see FIG. 4).

The upper surface of the slope portion main body 42 is continuous with the front end of the landing 41. The slope portion main body 42 has an uphill slope toward the landing 41 (second entrance / exit 30D). The front end of the slope portion main body 42 is located in front of the connecting portion 52. A handrail 43 is provided on the upper surface of the landing 41 and the slope main body 42. The handrail 43 is arranged along the rear end portion and the left end portion of the landing 41, and the left end portion of the slope portion main body 42.

According to the embodiment configured as described above, the following effects are obtained.

The mobile toilet 1 of the present disclosure supplies the trailer 50 that can move in the front-rear direction, the sanitary fixtures 21, 22, 26, 29 arranged on the trailer 50, and the sanitary fixtures 21, 22, 26, 29. A water supply tank 12 for storing fresh water and a drainage tank 13 for storing sewage discharged from each sanitary fixture 21, 22, 26, 29 are provided, and the center in the left-right direction orthogonal to the moving direction of the trailer 50. A water supply tank 12 and a drainage tank 13 are arranged in the section. According to this configuration, even if fresh water flows out from the water supply tank 12 and the amount of sewage stored in the drainage tank 13 increases, the weight balance in the left-right direction of the trailer 50 is unlikely to be lost.

In the mobile toilet 1 of the present disclosure, the water supply tank 12 is arranged above the drainage tank 13. According to this configuration, even if sewage leaks from the drainage tank 13, the inflow of sewage into the water supply tank 12 can be suppressed.

The mobile toilet 1 of the present disclosure includes a water supply tank 12 and a two-tiered upper and lower box 11 for accommodating a water supply tank 12 and a drainage tank 13 side by side. According to this configuration, even if fresh water leaks from the water supply tank 12 or sewage leaks from the drainage tank 13, it is easy to prevent the water from leaking into the box 11 and leaking to other spaces.

In the mobile toilet 1 of the present disclosure, the waste distribution 21 and the toilet bowl 22 are arranged side by side on the left and right sides of the water supply tank 12 and the drainage tank 13 in the left-right direction. According to this configuration, it is possible to balance the weight of the trailer 50 in the left-right direction.

The present disclosure is not limited to the embodiments described above and in the drawings, and for example, the following embodiments are also included in the technical scope.
(1) In the first embodiment, the water supply tank and the drainage tank having the same capacity are used. Not limited to this, a tank having a capacity smaller than the capacity of the drainage tank may be used as the water supply tank.
(2) In the first embodiment, the water supply tank and the drainage tank are arranged side by side. Not limited to this, the water supply tank and the drainage tank may be arranged side by side in the front-rear direction.
(3) The number and arrangement of wheels are not limited to the first embodiment.
(4) The first embodiment includes a box. Not limited to this, only the shelves on which the water supply tank and the drainage tank are installed may be provided.
(5) In the first embodiment, a plurality of types of sanitary appliances are provided one by one. The present invention is not limited to this, and a configuration may include one or more of one type of sanitary equipment, or a configuration including one or more types of sanitary equipment.
(6) In the first embodiment, the equipment room, the toilet room, and the front room are provided in the luggage box of the trailer. Not limited to this, a mobile toilet may be configured by providing an equipment room, a toilet room, and an anterior room in the luggage compartment of the automobile.

1 ... Mobile toilet, 11 ... Box, 12 ... Water supply tank, 13 ... Drainage tank, 21 ... Sewage distribution (sanitary fixture), 22 ... Toilet (sanitary fixture), 26 ... Hand wash basin (sanitary fixture), 29 ... Washbasin (Sanitary fixture), 50 ... Trailer (Vehicle)

Claims (4)

Vehicles that can move in the front-rear direction and
Sanitary fixtures placed in the vehicle and
A water supply tank for storing fresh water to be supplied to the sanitary fixture,
A drainage tank for storing sewage discharged from the sanitary equipment and
Is equipped with
A mobile toilet in which the water supply tank and the drainage tank are arranged at a central portion in the left-right direction orthogonal to the moving direction of the vehicle. The mobile toilet according to claim 1, wherein the water supply tank is arranged above the drainage tank. The mobile toilet according to any one of claims 1 to 2, further comprising an upper and lower two-stage box for storing the water supply tank and the drainage tank side by side. The mobile toilet according to any one of claims 1 to 3, wherein each of the two sanitary fixtures is arranged side by side on the left and right sides of the water supply tank and the drainage tank in the left-right direction.

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