WO2007059398A2 - Mecanisme de toilette a deux chasses d'eau - Google Patents

Mecanisme de toilette a deux chasses d'eau Download PDF

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Publication number
WO2007059398A2
WO2007059398A2 PCT/US2006/060693 US2006060693W WO2007059398A2 WO 2007059398 A2 WO2007059398 A2 WO 2007059398A2 US 2006060693 W US2006060693 W US 2006060693W WO 2007059398 A2 WO2007059398 A2 WO 2007059398A2
Authority
WO
WIPO (PCT)
Prior art keywords
float
flush
toilet
handle
hole
Prior art date
Application number
PCT/US2006/060693
Other languages
English (en)
Other versions
WO2007059398A3 (fr
Inventor
Edward T. Hawley
Philip J. Blyskal
Original Assignee
Oakhurst Properties, Llc
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 Oakhurst Properties, Llc filed Critical Oakhurst Properties, Llc
Priority to US12/093,754 priority Critical patent/US20080295238A1/en
Publication of WO2007059398A2 publication Critical patent/WO2007059398A2/fr
Publication of WO2007059398A3 publication Critical patent/WO2007059398A3/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/02—High-level flushing systems
    • E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
    • E03D1/142—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves
    • E03D1/144—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves having a single flush outlet and an additional float for delaying the valve closure
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
    • E03D5/09—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the hand
    • E03D5/094—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the hand the flushing element, e.g. siphon bell, being actuated through a cable, chain or the like

Definitions

  • the invention comprises a dual flush toilet mechanism including a pair of flush handles or flush buttons that can be located virtually anywhere on the toilet tank or on the top thereof.
  • Dual flush toilets are known especially in environments where water is precious as in the Middle East. Perhaps the best known European dual flush mechanism is manufactured by Plasson Maagan Michael Industries, Ltd., of Menasche, Israel. That particular mechanism has been retrofitted into American toilets by a variety of different mechanisms some of which are described in the patent literature. Note, for example, US Patent 6,898,808 which describes a typical adaptation using rigid levers. Other water closet devices that employ Plasson-type dual flush mechanisms are described in US Patents 5,711,039; 5,806,108; 5,396,665 and 4,305,163.
  • US Patent 3,877,082 is of interest in that describes a dual flushing tank for a water closet which relies, in part, upon a pullable cable and the action between one of the two actuating handles on the tank and a water bypass valve. Both drainage valves are operated by linkages.
  • US Patent 3,906,533 describes a flush toilet, with a variable volume flush, and employs a finger grip element to actuate it mounted on the flush actuating handle assembly.
  • US Patent 6,966,533 describes another cable operated flush valve but not of the dual flush variety.
  • US Patent 4,700,413 describes a dual volume toilet wherein a flexible cable, extending to the exterior of the tank, can be operated to change the volume of the flush.
  • US Patent Application 2004/0187201 describes a flushing valve connected to a manual actuator by a connector cable.
  • German Patent 199 40039 describes a dual flush toilet in one embodiment which employs two flexible links between the push button actuator and separate handle valve structures.
  • European Patent EP 997585 is of interest in that it describes a flexible operating member which extends from a push button to a pivoting lever.
  • the invention comprises a dual flush toilet having an actuating system that can be mounted virtually anywhere on the toilet tank or, if desired, on the top of the tank.
  • An inner and outer pair of levers are mounted on the exterior of the tank, at almost any desired location, and connected by a pair of cables including wire centers which attach in a novel way to a standard dual flush mechanism.
  • the outer, or low volume flush, handle is connected via a rotatable cam lever to a first wire which is, in turn, loosely connected to a float connector.
  • the end of the wire passes through a hole in the top of the float connector loosely so that the float connector can be pulled up, but when the spring handle returns to the horizontal position, the float connector can float down uninhibited by the wire. Lifting up on the float connector causes the main float to rise in the conventional manner and permits a low volume flush to pass down the drain.
  • both handles are depressed.
  • a tab on the inner handle engages a notch on the outer handle so that depressing the inner handle simultaneously pushes down on both handles and lifts both cable wires.
  • the first, or low volume flush cable, wire operates in the manner previously described.
  • the second wire is connected to a float lock which is pulled upwardly by the inner or second handle thereby releasing a lower float which is submerged in the water in the tank. Because the water float is submerged it rotates upward thereby placing the distal end, or foot of it, underneath the lower lip of the float mechanism. As the water continues to recede, this holds the float mechanism up a lot longer until such time as the water falls substantially below the level of the lower float.
  • Figure 1 is a partial cross-sectional view of a conventional, prior art dual flush toilet.
  • Figure 2 is a partial cross-sectional view of the preferred embodiment of the invention showing the manner in which the flush handles may be moved to the left hand side of the toilet tank.
  • FIG. 3A is a cross-sectional view of the preferred embodiment of the invention immediately prior to flushing.
  • FIG. 3B is a cross-sectional, detailed view of the invention wherein the outer, lower volume, flush handle has been depressed and the invention allows a small or low volume of water to escape into the toilet bowl.
  • FIG. 3 C is a cross-sectional, detailed view of the preferred embodiment of the invention in a later part of the low volume flush cycle after the handle has returned to its normal horizontal position and the upper float seal is about to contact the lower seal.
  • FIG. 4A is a cross-sectional, detailed view of the preferred embodiment of the invention at the initiation of the high volume cycle.
  • FIG. 4B is a cross-sectional, detailed view of the preferred embodiment of the invention in the next phase of the dual flush cycle in which the handles have returned to then- normal horizontal positions and the main float valve is held open longer by the upward rotation of the lower float.
  • FIG. 4C is a cross-sectional, detailed view of the high volume flush mode shown in
  • FIG. 4D is a cross-sectional, detailed view of the dual flush mechanism at the end of the high volume flush cycle, wherein the toilet tank begins to refill and the mechanism is resetting itself for the next flush.
  • HG. 5 is an exploded view of the dual handle flush mechanism.
  • FIG. 6 illustrates the manner in which the twin flushing handles connect to the wire operating mechanism through the wall of a standard toilet tank.
  • FIG. 7 illustrates the preferred embodiment of the invention in the form of a kit which can be purchased to modify a conventional, prior art toilet such as shown in figure 1.
  • FIG. 8 illustrates an alternative embodiment of the invention in which the dual flush mechanism is ooperated by a pair of buttons located in the top lid of the toilet.
  • FIG. 1 A typical prior art, dual flush toilet 10 is illustrated in Fig. 1.
  • Such toilet devices typically include a standard ceramic tank 12, a ceramic lid 14 and a support base 16.
  • a pair of dual flush handles 18 is shown located on the right hand side of the toilet tank 12, as is common in Europe. Handles 18 are attached to a lever lifting mechanisms on the inside of tank 12 in order to actuate dual flush mechanism 20.
  • the dual flush mechanism 20 is preferable a Plasson type, manufactured by Plasson Maagen Michael Industries, Ltd., Menasche, Israel. Plasson type dual flush mechanisms 20 are common in Europe and in Israel and other locations where water is scarce.
  • the problem is that they are hard to adapt to American style toilets where the handle might be on the left hand side, or perhaps even on the side, of the tank 12 and in some cases on the top 14 of the toilet 10. Accordingly, a mechanism is needed that will permit Plasson type dual flush mechanisms 20 to be adapted to American type toilets. Such a mechanism has to be robust, economical and reliable.
  • the preferred embodiment of the present invention 22 is illustrated in Fig. 2. As shown in Fig. 2, the dual flush handle assembly 22 is located on the left hand side of the front of the toilet tank 12, but, alternatively, could be located on either the left or right side of the toilet tank 12 or, even on the top 14.
  • the invention 22 is such that it permits the dual flush handle mechanism to be placed almost anywhere on the toilet tank 12 using conventional fittings.
  • Dual flush handle assembly 24 is connected by first cable 26 to flush valve connector 32 in order to actuate a low volume flush.
  • a second cable 28, also connected to the dual handle assembly 24 is connected to float lock 34 which causes the invention 22 to operate in its high volume, full flush mode.
  • the wires 60 and 64, shown in Fig. 3A, pass through cables 26 and 28 respectively and are received by cable tower 30.
  • a prior art Plasson-type dual flush mechanism 20 is shown in its normal position.
  • Prior art dual flush mechanism 20 includes a vertical tube section 36 having an overflow opening 38 at the top thereof.
  • a vertical row of teeth 40 is located on one side of vertical tube 36.
  • a main float 42 is attached to vertical tube 36.
  • main float 42 Attached to main float 42 is a float adjustment lever 44 that selectively engages with one of the teeth 40 on the vertical tube 36.
  • the purpose of adjusting the location of the main float 42 on the vertical tube 36 is to be able to control the amount of water 50 flushed from the tank 12 in the low volume flush mode.
  • a seal 46 is located at the bottom of the tank 12 and surrounds a discharge pipe 48. When the toilet is shut off, traveling stopper seal 54, carried by vertical tube 36, mates with lower seal 46 to prevent the outflow of water 50. Also shown in Fig. 2 is the lower float 52 which comes into play during the large volume or full flush mode of the apparatus.
  • FIG. 5 is an exploded view of the handle mechanism and its associated parts.
  • the dual flush handle assembly 24 comprises an outer lever 82 and an inner lever 84.
  • Outer lever 82 controls the single, low flush mode of the toilet whereas depressing inner lever 84 simultaneously depresses outer lever 82 and produces a full flush of the toilet.
  • Outer lever 82 includes a notch 86 which engages with tab 88 on inner lever 84 so that depressing inner lever 84 simultaneously depresses outer lever 82.
  • Outer lever 82 also includes a stem 90 and a key way 102 that passes through apertures 122, 124, 98, and 118 and is received in aperture 120 of lever cam 108.
  • inner lever 84 includes a stem 92 having a flat portion 104 which passes through aperture 124 and aperture 98 and engages with aperture 118 of lever cam 106.
  • a conventional, through the wall fitting 94 permits the actuating shaft mechanisms 90, 92 to pass through the tank wall 12 via aperture 124.
  • a housing 96 having aperture 98 is located on the inside of the tank 12 and receives stems 90 and 92 from flush handles 82 and 84 respectively.
  • a housing end plate 100 including an aperture 126, seals the components inside of housing 96 as seen, for example, in figure 6.
  • Single flush wire 60 includes an anchor 116 that is received in a notch 130 in lever cam 108.
  • full flush wire 64 includes an anchor 114 which is received in a notch 128 in lever cam 106.
  • a return spring 110 is attached at one end to housing 96 and the other end to lever cam 106 so as to return handle 84 it to a normally horizontal position.
  • return spring 112 is also connected inside housing 96 and to lever cam 108 to return handle 82 to a normally horizontal position after flushing.
  • Figure 6 essentially illustrates the parts shown in the exploded view of Fig. 5 except as assembled and in position to pass through aperture 124 of the tank wall connector 94.
  • Figure 7 illustrates the elements of the invention that might be sold as a conversion kit.
  • the conversion kit may, or may not, be sold with a conventional Plasson-like dual flush mechanism 20 depending upon whether or not the customer already has such a mechanism.
  • a flush valve connector 32 includes a hole 68 which connects it to a pin 166, visible in Fig. 3 A, so that it can be attached to the dual flush mechanism 20.
  • a hole 74 substantially larger than wire 60, permits the wire 60 to pass through aperture 74 loosely and easily.
  • float lock 34 includes an upper aperture 80 having a diameter significantly larger than wire 64 so that it can loosely move up and down through aperture 80.
  • Cable tower 30 includes an upper projecting tube 70 having an aperture 72 therein which permits wire 60 to pass there through and through aperture 74 of the flush valve connector 32.
  • wire 60 includes a hooked crimp 62 so that it stays engaged in aperture 74 of the flush valve connector 32.
  • cable tower 30 also includes a second, lower upward projecting tube 76 having a passageway 78 there through significantly larger than wire 64. Wire 64 passes through passageway 78 and through passageway 80 in the float lock 34 and stays in position there because of crimp 66, also shown in Fig. 3A, at the end of wire 64.
  • Figures 3A - 3C illustrate in progressive fashion the manner in which the mechanism 22 produces a small, or low volume, single flush.
  • FIG. 3A illustrates the invention 22 prior to initiation of a single, low volume flush.
  • both handles 82, 84 of handle assembly 24 are in the normal horizontal position held there by springs 110 and 112.
  • Upper seal stopper 54 is in contact with lower seal 46 so that water 50 cannot pass through the drain pipe 48.
  • Lower float 52 is held downward by float lock 34 which prevents lower float 52 from rotating upwardly.
  • Figure 3B illustrates the initiation of the single, low volume flush cycle.
  • the outer handle 82 has been rotated downwardly as shown in the direction of arrow 170. This causes cam 108 to rotate and draw wire 60 upwardly.
  • the crimp 62 engages the top of the flush valve connector 32 drawing it and the Plasson unit 20 in an upward direction as shown by arrows 132.
  • the vertical tube 36 rides on an inner guide stem 56 having a passageway 58 there through. Once the seal between elements 46 and 54 is broken, the main float 42 moves upwardly towards the surface of water 50.
  • the amount of the flush in the low flush mode is in part determined by the position of the adjustment device 44 with respect to teeth 40.
  • the lower float 52 is held in position by the float lock mechanism 34.
  • Figure 3C shows the invention 22 towards the end of the low, or small, flush cycle as the float mechanism 42 travels downward in the direction of arrow 136 so that upper seal 54 eventually mates with, and seals with, lower seal 46 thereby stopping the flow of water 50 out of drain 48.
  • the float 42 can travel downwardly even though the handle 80 has returned upwardly to the horizontal position in the direction of arrow 140 because there is enough slack 138 in wire 60 so that the mechanism can float up and down.
  • the float 42 ceases moving downward once the flush connector 32 contacts the crimp 62 in wire 60 and the two seals 46 and 54 mate. Once that happens the mechanism 10 returns to the preflush mode as illustrated in Fig. 3A.
  • FIGS 4A-4D illustrate the manner in which the invention 22 is used in the dual, or high volume, flush mode.
  • FIG 4A the large volume flush cycle is shown at its initiation.
  • Handle assembly 24 is pushed down in the direction of the arrow 142.
  • Pushing down on inner handle 84 also pushes down on outer handle 82 because tab 88 engages the notch 86 in outer handle 82. Consequently both inner wires 60 and 64 are pulled upwardly at the same time.
  • the wire 60 attached to the outer handle 82 pulls up on the flush valve connector 32 letting water 50 drain from the tank 12 in the direction of arrow 134.
  • This action is similar to that described with regard to the single flush mode illustrated in Figs. 3A-3C.
  • the float lock 34 is also lifted up in tihe direction of arrow 144.
  • Fig. 4C illustrates the invention 22 towards the very end of the large volume flush mode.
  • the tank 12 becomes almost totally evacuated.
  • the water level 50 drops below the lower float 52 making the lower float 52 less buoyant.
  • the weight of the lower float 52 which is now not held up my water 50, drops in the direction of arrow 160.
  • This causes the foot 148 of the lower float 52 to rotate away from the lower rim 150 of the vertical tube 36.
  • the float lock 34 drops down in the direction of arrow 162 to lock the lower float 52 in its lowest, pre-discharge position.
  • wires 60 and 64 are loosely received in apertures 74 and 80 of the float connector 32 and the float lock 34 respectively as seen in detail in Fig. 7. This causes a portion 138 of wire 60 to drop below the aperture 74 as seen in Fig. 4C. Similarly a portion 154 of wire 64 drops below aperture 80 of the float lock 34.
  • wires 60 and 64 can only pull up on the float connector 32 and the float lock 34 but cannot hold them down. This permits the mechanism to reset itself. If, on the other hand, wires 60 and 64 were rigidly connected to float connector 32 and float lock 34, then the mechanism could not reset itself.
  • Figure 4D illustrates the last phase of the large volume flush mode in which the upper seal 54 has come into sealing contact with lower seal 46 thereby preventing any more water 50 from escaping through the drain pipe 48. Water 50 continues to rise in the direction of arrow 164 until it reaches its pre flush condition as illustrated in Figures 2 and 3 A.
  • Figure 8 illustrates an alternative embodiment 180 of the invention in which push buttons 182 and 184 mounted on the toilet lid 14 replace handles 82 and 84 which are normally mounted on the sides of the tank 14. While the two button alternative embodiment 180 is preferably mounted on lid 14, it could just as easily be mounted anywhere convenient on the side or front or even back of tank 12, if desired. Accordingly, the flush handles 82, 84 or buttons 182, 184 or similar actuating devices can be mounted just about anywhere on the toilet tank 12 or lid 14 depending on the needs of the user.
  • the preferred embodiment of the invention 22 has a number of advantages over the prior art.
  • the invention 22 can be sold as a universal Mt similar to that shown in Fig. 7, which would allow an individual to put the dual flush mechanism handle assembly 24 almost anywhere on the side of the tank 12 or on the top 14. If the dual flush handle assembly 24 is placed on the top 14, it is possible to replace the handles 82 and 84 with a pair of spring- loaded push buttons 182 and 184 as is done with many European toilets.
  • the system is fairly elegant in its operation and the parts can be manufactured from appropriate plastic materials relatively inexpensively. This is especially important in third world countries where water conservation is absolutely critical.
  • the system is very reliable in that it depends upon an existing prior art dual flush mechanism 20 but constructed in such a way that almost 100% reliability is ensured. While the invention has been described with reference to the preferred embodiment thereof, it will be appreciated by those of ordinary skill in the art that modifications can be made to the parts and method that comprised the invention without departing from the spirit and scope of the invention as a whole.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

La présente invention concerne un système de toilette à deux chasses d'eau qui comprend un mécanisme (22) qui permet aux poignées de chasse d'eau (82, 84) d'être placées au niveau d'un emplacement quelconque sur le réservoir de chasse d'eau (12), voire même sur la partie supérieure (14) de la cuvette de toilette si l'on souhaite. La vanne à deux chasses d'eau elle-même comprend de préférence un mécanisme d'art antérieur (20) fixé à une paire de poignées extérieures (82, 84) au moyen d'un système de câble et fil métallique (60, 64). La rotation d'une poignée extérieure (82) force le flotteur principal (42) à monter sous l'influence d'un premier fil métallique (60), entraînant ainsi une chasse d'eau de petit ou faible volume. Le fait d'appuyer sur les deux poignées (82, 84) simultanément force un verrouillage de flotteur (34) à monter, ce qui à son tour permet à un flotteur inférieur (52) de se lever et d'entrer en prise avec le bord inférieur (150) du mécanisme de flotteur (20), retenant ainsi le mécanisme (20) vers le haut plus longtemps et chassant le contenu entier des toilettes, créant ainsi une chasse d'eau de volume plus important. Une certaine quantité prédéterminée de jeu dans les deux fils métalliques (82, 84) permet au connecteur de flotteur (32) et au verrouillage de flotteur (34) d'être tirés vers le haut, mais ne les empêche pas de se déplacer vers le bas lorsque l'action de ressort (110, 112) des poignées (82, 84) remet les poignées (82, 84) dans la position horizontale. Selon une variante de mode de réalisation (180) de l'invention, des boutons-poussoirs à ressort (182, 184) peuvent être montés sur le couvercle (14) à la place des poignées (82, 84).
PCT/US2006/060693 2005-11-15 2006-11-09 Mecanisme de toilette a deux chasses d'eau WO2007059398A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/093,754 US20080295238A1 (en) 2005-11-15 2006-11-09 Dual Flush Toilet Mechanism

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US73693705P 2005-11-15 2005-11-15
US60/736,937 2005-11-15
US82120006P 2006-08-02 2006-08-02
US60/821,200 2006-08-02

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WO2007059398A2 true WO2007059398A2 (fr) 2007-05-24
WO2007059398A3 WO2007059398A3 (fr) 2007-11-22

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Cited By (4)

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EP1916343A3 (fr) * 2006-10-17 2010-04-28 VIEGA GmbH & Co. KG. Robinet de chasse à action double
GB2465571A (en) * 2008-11-20 2010-05-26 Aqess Co Ltd Dual flush toilet system
US20100132104A1 (en) * 2008-06-13 2010-06-03 Andras Csiki Toilet tank valve structure with primary and secondary actuators
EP2141294A3 (fr) * 2008-07-02 2012-05-16 VIEGA GmbH & Co. KG Soupape à double volume pour une chasse d'eau dotée d'un mécanisme de flotteur à commande amélioré

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US20110035868A1 (en) * 2009-08-13 2011-02-17 Lisbeth Pedersen Sylvester Dual flush toilet valve system
US20110167550A1 (en) * 2010-01-11 2011-07-14 David Fisher Revelle Water-Saving Toilets and Methods of Using the Same
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US9181688B2 (en) * 2011-04-18 2015-11-10 Fluidmaster, Inc. Toilet valve float mechanism
US9371639B1 (en) * 2011-07-02 2016-06-21 Danco, Inc. Toilet flush valve with bowl overflow prevention
US9032560B2 (en) 2012-02-28 2015-05-19 Kohler Co. Multi-flush mode toilet
US8584268B2 (en) 2012-03-09 2013-11-19 James T. Han Dual flush toilet devices
WO2015035422A1 (fr) * 2013-09-09 2015-03-12 Fluidmaster, Inc. Verrou de flotteur pour un réservoir de robinet de chasse d'eau
US10907332B2 (en) 2017-09-01 2021-02-02 Kohler Co. Flush actuator assembly
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US6898808B2 (en) * 2003-06-17 2005-05-31 Aquanotion Ltd. Dual flushing mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1916343A3 (fr) * 2006-10-17 2010-04-28 VIEGA GmbH & Co. KG. Robinet de chasse à action double
US20100132104A1 (en) * 2008-06-13 2010-06-03 Andras Csiki Toilet tank valve structure with primary and secondary actuators
EP2141294A3 (fr) * 2008-07-02 2012-05-16 VIEGA GmbH & Co. KG Soupape à double volume pour une chasse d'eau dotée d'un mécanisme de flotteur à commande amélioré
GB2465571A (en) * 2008-11-20 2010-05-26 Aqess Co Ltd Dual flush toilet system

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US20080295238A1 (en) 2008-12-04
WO2007059398A3 (fr) 2007-11-22

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