Baths – closets – sinks – and spittoons – Restroom or bathroom self-cleaning systems
Patent
1988-10-11
1990-05-08
Phillips, Charles E.
Baths, closets, sinks, and spittoons
Restroom or bathroom self-cleaning systems
A47K 400
Patent
active
049225596
DESCRIPTION:
BRIEF SUMMARY
FIELD OF INVENTION
The invention relates to a public sanitary cubicle comprising a sanitary room with a water closet accessible through an outer door and a cleaning room divided off by a partition from the sanitary room and which is provided with the means necessary for the supply, disposal and cleaning of the sanitary room and in particular a cleaning implement which can be brought up to the water closet after moving away the partition or a part thereof and a drain connected to the water closet.
BACKGROUND AND SUMMARY OF INVENTION
Sanitary cubicles of the aforementioned type have of late been set up at busy points in cities. They are constructed as a type of spatial cell and generally comprise a reinforced concrete body with a trough-like base and a roof mounted thereon. The reinforced concrete body is internally subdivided into two rooms, namely the sanitary room and the cleaning room, at least the sanitary room being provided with its own inner wall structure, e.g. of high-grade steel, aluminium or plastic in order to satisfy hygienic requirements. The sanitry room is provided with a water closet or lavatory pan, a washbasin with mirror and optionally with depositing points and is equipped with a generally arcuately guided outer door, which closes a cutout in the reinforced concrete body. The cleaning room contains all the functional parts for supply, disposal and cleaning purposes. This cleaning room generally has a separate access door for maintenance and repair purposes.
Access to sanitary cubicles of this type is by inserting a coin, which unlocks the outer door and possibly sets into operation certain operational parts such as flushing, exhaust ventilation, etc. When the user leaves the sanitary room, generally automatically the cleaning thereof is commenced and this in particular involves a complete cleaning of the water closet and the washbasin. The cleaning cycle also includes a drying process, so that following users are provided with a clean, dry sanitary room. The outer door remains locked during the cleaning cycle. At the end of the cleaning cycle unlocking automatically takes place, so that the outer door can again be opened by inserting a coin. The drain of sanitary cubicles of this type at the point of installation is directly connected to the sewer, so that in normal operation it can function in maintenance-free manner as an autonomous sanitary unit.
There are essentially three basic constructions for such sanitary cubicles. In the first construction (DE-OS 33 32 356) the sanitary room and the cleaning room are arranged concentrically, all the operational parts being located between the outer shell and the inner shell surrounding the sanitary room. For cleaning purposes corresponding water ducts are passed from the outer shell into the sanitary room and the water is distributed over the water closet, the washbasin and the lower part of the inner wall. Following cleaning with water, a fan blows dry air into the lower region of the sanitary room. This construction does not satisfy the requirements made on public toilets. Thus, due to the special nature of the water supply cleaning is inadequate. No precautions are taken for the case frequently occurring in connection with public toilets of the user throwing objects into the lavatory pan and which, either as a result of their size or their weight, cannot be removed by standard toilet flushing. There is also no removal possibility if objects or waste are placed on the floor. Moreover, due to the conventional construction of the lavatory pan with siphon account is not taken of the always existing risk of blockages.
It is known that a completely satisfactory cleaning of a water closet is not possible by water alone and in fact there must be a mechanical cleaning, e.g. by using brushes. This fact is taken into account by the two other constructions. In one case (EP-OS 0 109 496, DE-OS 28 51 036 and DE-OS 30 27 207) the rear area of the water closet is pivotably mounted on a horizontal spindle. In addition, there is a recess in the lower reg
REFERENCES:
patent: 4210973 (1980-07-01), Decaux
patent: 4301558 (1981-11-01), Decaux
patent: 4597114 (1986-07-01), Paterlini
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