EP0814210A1 - Siège avec aspiration d'air pour cuvette de W.C. - Google Patents

Siège avec aspiration d'air pour cuvette de W.C. Download PDF

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Publication number
EP0814210A1
EP0814210A1 EP96830350A EP96830350A EP0814210A1 EP 0814210 A1 EP0814210 A1 EP 0814210A1 EP 96830350 A EP96830350 A EP 96830350A EP 96830350 A EP96830350 A EP 96830350A EP 0814210 A1 EP0814210 A1 EP 0814210A1
Authority
EP
European Patent Office
Prior art keywords
seat
aspiration
delivery
air
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96830350A
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German (de)
English (en)
Inventor
Achille Pagani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP96830350A priority Critical patent/EP0814210A1/fr
Publication of EP0814210A1 publication Critical patent/EP0814210A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/04—Special arrangement or operation of ventilating devices
    • E03D9/05—Special arrangement or operation of ventilating devices ventilating the bowl

Definitions

  • the present invention concerns an air-aspirated seat for a lavatory bowl, commonly known as a water closet.
  • water closets In order to reduce the formation of odours it is also known for water closets to be provided with a handle for activating a continuous flow of flushing water, also known as rapid " , when the lavatory bowl is in use.
  • the present invention overcomes these limitations and disadvantages effectively, and resolves the technical problem of the complete elimination of the unpleasant odours arising from the use of a water closet when they first arise in the bowl of the water closet, without the gases having to diffuse into the atmosphere from which it is inevitably slower and more difficult to remove them, requiring the complete replacement of the air in the environment.
  • the invention is characterised in that it provides a seat for a lavatory bowl, that is commonly called “board” for its plane shape, provided in its lower part facing the lavatory bowl with at least one aspiration aperture communicating through an internal aspiration manifold with an aspiration duct provided with aspiration means, integral with the seat or separate therefrom, for conveying the flow of aspirated air, depending on the possibilities offered by the water closet installation, through a vent or ventilation duct from the environment, through a separator syphon to a waste water discharge or, in the case of sanitary installations provided with a tank for storing the flushing water of the water closet, below a head of water in the storage tank.
  • board for its plane shape
  • a conventional lavatory bowl 1 is shown provided with a seat 2, or board, shown in the raised position.
  • This cavity forms an internal aspiration manifold which houses an aspiration device 6 constituted, for example, by a single or multi-stage centrifugal or axial fan, driven by an electric motor 7.
  • the rear part of the seat is provided with a projecting box-like body 8 of suitable dimensions to house the motor 7 and the fan 6.
  • the box-like body may also project from the rear edge of the lavatory bowl which is normally installed with its rear part located at some distance from a wall.
  • the electric motor 7 is supplied by the mains electricity supply through a plug 9 but, for safety reasons, the supply is preferably indirect through a transformer/supply voltage reducer.
  • the aspirated gases are conveyed through a flexible delivery pipe 10.
  • the activation of the motor 7 may be controlled by the user by means of a switch or, as shown in Figure 2, it may be automatic and caused by the open position of the lid 11 of the seat 2.
  • the lid 11 in the open position acts on a push button 12 advantageously located on the front face of the box-like body 8 of the seat 2.
  • a device may be provided within the seat 2, which is sensitive to the weight placed thereon.
  • Figure 3 shows, in an illustrative way, various possible ways of installing the aspiration seat.
  • the delivery pipe 10 may be connected directly to an aspiration or outlet flue 13 with which many environments are provided, in particular where there are no windows (typical in the case of sanitary facilities in hotel rooms), or a ventilation outlet formed in a wall, a door, a window frame or the glass of a window.
  • an aspiration or outlet flue 13 with which many environments are provided, in particular where there are no windows (typical in the case of sanitary facilities in hotel rooms), or a ventilation outlet formed in a wall, a door, a window frame or the glass of a window.
  • the delivery pipe 10 may be introduced with its end bent to form a upside-down syphon 15 in the tank 14 and sunk therein below a head of water.
  • the aspirated gases are therefore bubbled through the water contained in the tank 14 to form a solution which is washed and cooled so as effectively to remove the malodorous content therefrom.
  • the delivery pipe 10 may be connected to a waste water discharge pipe 16 which is normally provided with an outlet, being a pressure compensator, with an interposed direct isolation syphon 17.
  • the syphon 17 may be periodically filled with water drawn from the storage tank 14 through a suitable duct 18 or, possibly, from the rapid water delivery pipe.
  • the aspiration system may be preferable, for aesthetic reasons, safety, or ease of installation and maintenance, to locate the aspiration system at a distance from the seat.
  • the delivery pipe may be connected directly to the gas manifold formed in the seat, without needing the box-like body for housing the aspiration devices 6.
  • the seat instead of being unitary, may be hinged to a rear anchor plate 19 which, in its turn, is fixed firmly to the lavatory bowl in a known way.
  • the manifold 5 formed in the seat is connected to the pipe 10, fixed to the anchor plate 19, through a suitable seal which is sealed when the seat is lowered.
  • a nozzle for extracting water by the Venturi effect may be used instead of the fan.
  • the delivery pipe 10 is connected to a water extractor 20, having an extraction nozzle 21 and supplied by the main water supply.
  • a valve 23 controls the supply to the nozzle, and the control may be either manual in the form of a button or tap, or automatic following a predetermined event such as opening the lid of the lavatory bowl, or applying a weight to the seat.
  • the extractor outlet is connected to a direct syphon 22 which discharges into the waste water collection duct and ensures the isolation of the duct, thereby preventing any back flow.
  • the reference numeral 101 indicates in its entirety a different embodiment of an aspiration seat, or board, according to the invention.
  • the seat 101 includes a rear portion 102 connected to a lavatory bowl 107 by known hinge connection means 103 which are angularly movable with respect to the lavatory bowl 107 about a predetermined hinge axis X-X between a lowered position ( Figures 6 and 7) and a raised position ( Figure 8).
  • Support blocks 104 projecting from the lower surface 105 of the seat 101 support the seat 101 on the upper edge 106 of the lavatory bowl 107 when it is in the aforesaid lowered position.
  • the seat 101 is shaped to form a box-like body 108 defining a chamber 109 close to the rear portion 102, extending mainly along the aforesaid axis X-X, within which are housed a centrifugal fan 110 and an electric motor 111 necessary to rotate it.
  • the centrifugal fan 110 is of the double-inlet type with an axis of rotation parallel to the direction X-X.
  • an aspiration aperture 112 which extends for a predetermined section L along the inner edge 113 of the rear portion 102 of the seat 101.
  • the aspiration aperture 112 therefore extends close to the centrifugal fan 110 and parallel thereto, and is in fluid communication with an aspiration collector/manifold of the centrifugal fan 110.
  • the aspiration aperture 112 preferably extends to the portion of the inner edge 113 of the seat 101 located along the aforesaid section L of the lower surface 105 of the seat 101.
  • the aspiration aperture 112 includes respective lateral portions 115 at its opposite ends, which extend on the lower surface 105 of the seat 101 from the inner edge 113 towards the rear end thereof in a direction Y-Y which is substantially perpendicular to the direction X-X, so that the aspiration aperture 110 is substantially U-shaped.
  • the distance L between the aforesaid lateral portions 115 of the aspiration aperture 112 is advantageously such that it is greater or at least equal to the axial length of the centrifugal fan 110, so that the centrifugal fan 110 extends between the said lateral portions 115.
  • This allows the centrifugal fan 110 to aspirate air through the lateral portions 115 of the aspiration aperture 112, along the axial ends of the rotor, with a significant increase in the efficiency of aspiration and, therefore, in the quantity of air and gas aspirated for an equal centrifugal fan power.
  • a discharge collector/manifold 116 for the chamber 109 of the seat 101 allows the aspirated air and gases to be conveyed from the centrifugal fan 110 to a flexible delivery pipe 118.
  • the discharge collector/manifold 116 includes a sleeve 119 projecting from the upper part of the box-like body 108 and positioned in correspondence with the centre of the centrifugal fan 110.
  • a corresponding elbow connector 120 on the end of the flexible pipe 118 is engaged with the sleeve 119 in a male and female coupling.
  • the sleeve 119 and the connector 120 of the flexible pipe 118 are preferably connected by known quick-release means 121 which allow the connector 120 to rotate about the axis Z-Z of the sleeve 119 such that the flexible pipe may be oriented according to the specific needs of the installation.
  • the sleeve 119 constitutes the male element of the connector and, at its free end, includes an external projection 122 extending circumferentially around the sleeve 119 except for a predetermined section A of the circumference.
  • the connector 120 includes two diametrically opposed internal projections 123 which extend circumferentially along a section at the most equal to the aforesaid section A without external projections 122 of the sleeve 119.
  • the connector 120 is engaged with the sleeve 119 by fitting an internal projection 123 of the connector 120 tightly against the lateral surface of the sleeve 119 below the external projection 122 ( Figure 12) and rotating the connector 120 with respect to the axis Z-Z of the sleeve 119 until the internal projection 123 corresponds with the section A of the sleeve 119 free of external projections 122, permitting the connector 120 to engage with the sleeve 119.
  • the internal projections are moved away from the aforesaid section A of the sleeve 119 free of external projections 122, so as to prevent the connector 120 disengaging from the sleeve 119.
  • the arrangement of the internal projections 123 of the connector 120, and the section A of the sleeve 119 free of external projections 122 is preferably such that the connector 120 is able to engage with the sleeve 119 only when the connector 120 is perpendicular to the axis X-X and oriented from the rear portion 120 of the seat 101 towards the opposite end thereof.
  • Figure 10 represents by way of example a different way in which the aspiration seat 101 may be installed.
  • the flexible delivery pipe 118 may be connected directly to an aspiration or outlet flue 124 with which many environments are provided, particularly where there are no windows (the case of sanitary facilities in hotel bedrooms is typical), or a ventilation outlet formed in a wall, a door, a window frame or the glass of a window.
  • the flexible pipe 118 may be introduced into the tank 125 with its end bent to form an upside-down syphon 126 and sunk therein below a head of water.
  • the aspirated gases are bubbled through the water contained in the tank 125 to form a solution which is washed and cooled so as effectively to remove the malodorous content therefrom.
  • the flexible pipe 118 may be connected to a pipe 117 for discharging the waste liquid, this normally being provided with a vent, being a pressure compensator, with an interposed direct isolation syphon 128.
  • the direct syphon 128 may be periodically filled with water drawn through an appropriate pipe 129 from the storage tank 125 or, possibly, from the rapid water delivery pipe.
  • a cover 130 is attached to the rear portion 102 of the seat 101 to be angularly movable around the aforesaid hinge axis X-X with respect to the seat 101 or the lavatory bowl 107, between a lowered position in which it is horizontal ( Figure 6), and a raised position in which it is substantially vertical ( Figures 7 and 8).
  • the rear part 131 of the cover 130 complements the shape of the box-like body 108 of the seat 101 and includes an aperture 132 which is advantageously shaped so as not to interfere with the sleeve 119 of the discharge manifold 116.
  • the electric motor 111 is supplied from the mains electricity via a plug 117 but, for safety reasons, the supply is preferably indirect through a transformer/supply voltage reducer.
  • the activation of the electric motor 111 is controlled by a switch 114 on the rear portion 102 of the seat 101.
  • the switch 114 preferably includes a button actuator facing the outer rear edge of the seat 101, which is operable by a projection 133 projecting from the rear part 131 of the cover perpendicular to the hinge axis X-X when the cover 130 is raised and the seat 101 is lowered ( Figure 7)
  • the centrifugal fan 110, the motor 111, the switch 114 and the other electrical parts are of the type which conform to safety standards for use in the presence of water.
  • the aspiration seat described above resolves in an effective way the technical problem of the complete elimination of unpleasant odours arising from the use of a water closet when they first arise in the lavatory bowl, without having the disadvantages referred to.
  • the efficiency of aspiration of the unpleasant odours is controlled by the shape of the aspiration aperture and the positioning thereof with respect to the centrifugal fan which allows the loss in aspiration pressure to be reduced so as to be able to aspirate a greater quantity of air and gas for the same fan power.
  • a further advantage of the aspiration seat according to the invention lies in its perfect adaptability to conventional lavatory bowls.
  • a further advantage of the aspiration seat according to the invention lies in its structural and functional simplicity.
  • the chamber in which the fan and the associated electric motor are housed may be a separate element which is attached to the rear portion of the seat with a suitable interposed seal.
  • the aspiration opening may have a single lateral portion.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
EP96830350A 1996-06-19 1996-06-19 Siège avec aspiration d'air pour cuvette de W.C. Withdrawn EP0814210A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96830350A EP0814210A1 (fr) 1996-06-19 1996-06-19 Siège avec aspiration d'air pour cuvette de W.C.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96830350A EP0814210A1 (fr) 1996-06-19 1996-06-19 Siège avec aspiration d'air pour cuvette de W.C.

Publications (1)

Publication Number Publication Date
EP0814210A1 true EP0814210A1 (fr) 1997-12-29

Family

ID=8225943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96830350A Withdrawn EP0814210A1 (fr) 1996-06-19 1996-06-19 Siège avec aspiration d'air pour cuvette de W.C.

Country Status (1)

Country Link
EP (1) EP0814210A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003087484A1 (fr) * 2002-04-17 2003-10-23 Luciano Perin Toilettes a dispositif d'aspiration
ES2251327A1 (es) * 2005-11-21 2006-04-16 Cristobal Gomez Perez Sistema de extraccion de olores dentro del inodoro.
CN112177118A (zh) * 2019-07-05 2021-01-05 Toto株式会社 卫生洗净装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE543347A (fr) *
CH448920A (fr) * 1966-11-02 1967-12-15 Zanardelli Alfred Dispositif de ventilation de la cuvette d'un cabinet d'aisance
CH465516A (de) * 1966-11-18 1968-11-15 Gaggenau Eisenwerk Sitzklosett
DE1902751A1 (de) * 1968-01-22 1969-09-04 Power Lectric Ltd Wasserclosett
DE2030719A1 (de) * 1969-06-24 1971-01-07 Stamper, Robin Harry Bryanston, Trans\aal (Südafrika) Toilettensitz
FR2512663A1 (fr) * 1981-09-14 1983-03-18 Desclaux Pierre Abattant desodorisant pour cuvette de w.-c.
EP0651098A2 (fr) * 1993-11-01 1995-05-03 Moshe Shalom Procédé et dispositif pour l'élimination des odeurs d'appareils sanitaires

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE543347A (fr) *
CH448920A (fr) * 1966-11-02 1967-12-15 Zanardelli Alfred Dispositif de ventilation de la cuvette d'un cabinet d'aisance
CH465516A (de) * 1966-11-18 1968-11-15 Gaggenau Eisenwerk Sitzklosett
DE1902751A1 (de) * 1968-01-22 1969-09-04 Power Lectric Ltd Wasserclosett
DE2030719A1 (de) * 1969-06-24 1971-01-07 Stamper, Robin Harry Bryanston, Trans\aal (Südafrika) Toilettensitz
FR2512663A1 (fr) * 1981-09-14 1983-03-18 Desclaux Pierre Abattant desodorisant pour cuvette de w.-c.
EP0651098A2 (fr) * 1993-11-01 1995-05-03 Moshe Shalom Procédé et dispositif pour l'élimination des odeurs d'appareils sanitaires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003087484A1 (fr) * 2002-04-17 2003-10-23 Luciano Perin Toilettes a dispositif d'aspiration
ES2251327A1 (es) * 2005-11-21 2006-04-16 Cristobal Gomez Perez Sistema de extraccion de olores dentro del inodoro.
CN112177118A (zh) * 2019-07-05 2021-01-05 Toto株式会社 卫生洗净装置

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