EP1536073A2 - WC mit reduziertem Wasserverbrauch mit einem einzigen Betätigungsmechanismus, welcher ein Spülventil durch ein erstes flexibles Kabel und ein Abwasserventil durch ein zweites flexibles Kabel kontrolliert - Google Patents

WC mit reduziertem Wasserverbrauch mit einem einzigen Betätigungsmechanismus, welcher ein Spülventil durch ein erstes flexibles Kabel und ein Abwasserventil durch ein zweites flexibles Kabel kontrolliert Download PDF

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Publication number
EP1536073A2
EP1536073A2 EP04027617A EP04027617A EP1536073A2 EP 1536073 A2 EP1536073 A2 EP 1536073A2 EP 04027617 A EP04027617 A EP 04027617A EP 04027617 A EP04027617 A EP 04027617A EP 1536073 A2 EP1536073 A2 EP 1536073A2
Authority
EP
European Patent Office
Prior art keywords
cam
lever
valve
toilet
bowl
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Withdrawn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
EP04027617A
Other languages
English (en)
French (fr)
Other versions
EP1536073A3 (de
Inventor
David Cameron
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.)
Thetford LLC
Original Assignee
Thetford 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 Thetford LLC filed Critical Thetford LLC
Publication of EP1536073A2 publication Critical patent/EP1536073A2/de
Publication of EP1536073A3 publication Critical patent/EP1536073A3/de
Withdrawn legal-status Critical Current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
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • E03D11/10—Bowls with closure elements provided between bottom or outlet and the outlet pipe; Bowls with pivotally supported inserts
    • 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
    • E03D5/08—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 foot combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising or lowering seat and cover and/or for swiveling the bowl

Definitions

  • the present invention relates to waste management systems. More particularly, the present invention relates to a flush toilet. More specifically, but without restriction to the particular embodiment and/or use which is shown and described for purposes of illustration, the present invention pertains to a reduced water consumption flush toilet.
  • Vehicles including recreational vehicles (“RVs”), airplanes, boats, trains, and the like often include toilets for the comfort and convenience of the passengers.
  • the toilets of vehicles must perform under operating conditions that are significantly different from non-transitory toilets conventionally found in homes and businesses (“home toilets”).
  • home toilets For example, vehicle toilets are typically required to operate often in a confined area and often rely on a source of on-board water for flushing. For the latter reason, vehicle toilets are typically designed to operate with reduced water consumption for water conservation.
  • United States Patent No. 5,060,320 discloses a toilet having a foot pedal flush control arrangement including two pedals. One of the pedals opens a toilet bowl discharge outlet and the other pedal supplies flush water to the bowl. The pedals both operate through actuation cables having a wire member slidable within a conduit.
  • the flush water pedal can be independently actuated to partially fill the bowl prior to use of the toilet while the outlet closure member pedal co-acts with the flush water pedal so that upon opening of the bowl outlet, the flush water pedal is depressed providing water to the bowl.
  • the wire members are solid wire members coupled to the pedals for both pull and push operation so that upon a failure of the pedal return mechanism, the pedals can be manually returned closing the bowl outlet and terminating the flow of flush water to the bowl.
  • the present invention provides a reduced water consumption flush toilet including a bowl assembly defining a bowl and a discharge opening at a lower end of the bowl.
  • the toilet additionally includes a valve mounted to the flush toilet for selectively opening and closing the discharge opening of the bowl assembly and a water valve for selectively delivering a source of flush water to the bowl.
  • the toilet further includes a common actuator assembly for controlling both the waste valve and the water valve. The actuator assembly is coupled to the water valve through a first flexible cable and coupled to the waste valve through a second flexible cable.
  • the actuator assembly include a lever that is movable from a first position to an intermediate position and from the intermediate position to a second position such that in the first position the waste valve closes the discharge opening and the water valve assembly is in the closed condition, in the intermediate position the waste valve closes the discharge opening and the water valve is in the open position for adding water to the bowl, and in the second position the waste valve opens the discharge opening and the water valve is in the open position for flushing the bowl.
  • Figure 1 is a front perspective view of a reduced water consumption toilet constructed in accordance with the teachings of a preferred embodiment of the present invention.
  • Figure 2 is a schematic illustration showing the interconnection of the actuator with the water valve and waste valve.
  • FIG 3 is an enlarged perspective view of the actuator assembly of the reduced water consumption toilet of Figure 1.
  • Figure 4 is a top view of the reduced water consumption toilet of Figure 1.
  • Figures 5A-5C represent a series of cross-sectional views taken along the line 5-5 of Figure 4 through a first cam and first cam follower of the actuator as the actuator rotates from a closed position (Figure 5A), to a water-add position (Figure 5B), and to a flush position (Figure 5C).
  • Figures 6A-6C represent a series of cross-sectional views taken along the line 6-6 of Figure 4 through a second cam and second cam follower of the actuator as the actuator rotates from a closed position (Figure 6A), to a water-add position (Figure 6B), and to a flush position ( Figure 6C).
  • Figure 7 is an enlarged portion of the cross-sectional view of Figure 5A.
  • Figure 8 is an enlarged cross-sectional view of Figure 6A.
  • a reduced water consumption flush toilet constructed according to the teachings of a preferred embodiment of the present invention is illustrated and generally identified at reference character 10.
  • the flush toilet 10 is intended to be operated with a reduced amount of water.
  • Such reduced water consumption flush toilets are particularly desirable for motor vehicle such as a recreational vehicle or the like where the water supply is limited.
  • the reduced water consumption flush toilet 10 of the present invention is illustrated to generally include a water valve 12 and a waste valve 14.
  • the water valve 12 is operative for delivering a source of water from a source of water 16 to a bowl 18 of the toilet 10 for flushing of the bowl 18.
  • the waste valve 16 is selectively operable for opening a discharge outlet 20 defined by a lower portion of the bowl 18.
  • the water valve 12 and the waste valve 14 are conventional in construction. Suitable water valves and waste valves are well known in the art and available from Thetford Corporation of Ann Arbor, Michigan, for example.
  • the water valve 14 is opened by a first flexible cable 22.
  • the waste valve 16 is similarly controlled for selective opening of the discharge outlet 20 by a second flexible cable 24.
  • the actuator assembly 26 is foot actuated.
  • the actuator assembly 26 is illustrated in the drawings to generally include a mounting portion 28 and a foot lever 30. The mounting portion 28 is secured to a base of the toilet 10.
  • the foot lever 30 is illustrated to generally include a central portion 32 that extends from the base of the toilet 10 and a pair of mounting arms 34.
  • Figure 3 illustrates one of the arms 34. It will be understood that the other arm is a mirror image thereof.
  • the arms 34 pivotally coupled to the mounting portion 28 for rotation about a common pivot axis X.
  • pivotally attachment of the arms 34 permits the lever 30 to articulate from a first position (as shown in Figures 5A and 6A) to a second position (as shown in Figures 5C and 6C) downwardly pivoted about 25° from the first position.
  • articulation of the lever 30 from the first position to an intermediate position functions to add water to the bowl 18 without opening the discharge opening 20.
  • the actuator assembly is further illustrated to include a first cam member 36 and a second cam member 38.
  • the first and second cam members 36 and 38 are rotatably mounted to the mounting portion 28.
  • the first and second cam members 36 and 38 are mounted to the mounting portion 28 for articulation about a common pivot axis Y.
  • the common pivot axis Y is positioned upwardly and forwardly relative to the pivot axis X.
  • Upper ends of the first and second cam members 36 and 38 are pivotally coupled to the mounting portion 28.
  • the first and second flexible cables 22 and 24 are secured to lower ends of the first and second cam members 36 and 38.
  • a rear surface 40 of the first cam member 36 defines a cam following surface for cooperating with a cam 44 carried by the lever 30.
  • the cam 44 is shown to include a convexly curved surface 45 for engaging the cam following surface 40.
  • the cam following surface 40 includes a central raised portion 47.
  • a rear surface 46 of the second cam member 38 similarly defines a cam following surface for cooperating with a cam 48 carried by the lever 30.
  • the cam 48 is again shown to include a convexly curved surface 49 for engaging the cam following surface 46.
  • the cam following surface 46 includes a central recessed portion 51.

Landscapes

  • 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)
EP04027617A 2003-11-26 2004-11-20 WC mit reduziertem Wasserverbrauch mit einem einzigen Betätigungsmechanismus, welcher ein Spülventil durch ein erstes flexibles Kabel und ein Abwasserventil durch ein zweites flexibles Kabel kontrolliert Withdrawn EP1536073A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US723287 1991-06-28
US72328703A 2003-11-26 2003-11-26

Publications (2)

Publication Number Publication Date
EP1536073A2 true EP1536073A2 (de) 2005-06-01
EP1536073A3 EP1536073A3 (de) 2007-05-16

Family

ID=34465704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04027617A Withdrawn EP1536073A3 (de) 2003-11-26 2004-11-20 WC mit reduziertem Wasserverbrauch mit einem einzigen Betätigungsmechanismus, welcher ein Spülventil durch ein erstes flexibles Kabel und ein Abwasserventil durch ein zweites flexibles Kabel kontrolliert

Country Status (1)

Country Link
EP (1) EP1536073A3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401202A (zh) * 2017-08-30 2017-11-28 朱昌霞 一种使用方便的蹲便器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060320A (en) 1990-06-25 1991-10-29 Thetford Corporation Recreational vehicle toilet with foot pedal flush

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710988A (en) * 1986-02-19 1987-12-08 Sanitation Equipment Limited Flush toilet
US5875499A (en) * 1998-01-23 1999-03-02 Thetford Corporation Recreational vehicle toilet with flush nozzle deflector shield
US5933882A (en) * 1998-06-05 1999-08-10 Sanitation Equipment Limited Lever-actuated flush toilet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060320A (en) 1990-06-25 1991-10-29 Thetford Corporation Recreational vehicle toilet with foot pedal flush

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401202A (zh) * 2017-08-30 2017-11-28 朱昌霞 一种使用方便的蹲便器

Also Published As

Publication number Publication date
EP1536073A3 (de) 2007-05-16

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